Mon–Fri 9:00–17:30

Help

Authorised Technology Partners

All Verified

Authorised Partner

Lenovo

Authorised Partner

Intel

Authorised Partner

Next Working Day
On qualifying orders
UK Dispatched
Fast & reliable nationwide
Expert Support
Mon–Fri, 8 am – 6 pm
Genuine Brands
Authorised reseller

Next-working-day delivery. Order before 17:30 (England & Wales) or 16:00 (Northern Ireland, Republic of Ireland, Scotland) to receive next-working-day delivery. Orders placed before 17:30 Friday are delivered Monday; after 17:30 Friday arrive Tuesday. Upgrades — pre-9, pre-10:30, pre-noon, special and secure bulk — available at extra cost.

Orders over £100 (ex VAT) receive FREE next-working-day delivery across the UK.

Instant digital delivery. Software licences, subscriptions, warranties & insurance, and electronic copies are delivered the same day via email — provided a valid email address is entered at checkout.

Currently Unavailable

This product is out of stock

We can email you when it's back in stock, confirm expected lead times, or recommend in-stock alternatives that meet the same requirements.

See Alternatives Email Sales 0161 464 9941

HP Z2 TWR G1I U9-285K 64/2T W11P

Manuf P/N: A40MQET#ABU

HP Z2 Tower G1i. Processor family: Intel Core Ultra 9, Processor model: 285K. Internal memory: 64 GB, Internal memory type: DDR5-SDRAM, Memory clock speed: 5600 MHz. Total storage capacity: 2 TB, Storage media: SSD. On-board graphics card model: Intel® Graphics, Discrete graphics card model: NVIDIA RTX 4000 Ada. Operating system installed: Windows 11 Pro. Power supply: 700 W. Chassis type: Tower. Product type: Workstation. Weight: 8.6 kg. Product colour: Black

NVIDIA RTX™ 4000 Ada Generation (20 GB GDDR6 dedicated)
Windows 11 Pro
64 GB DDR5-5600 MT/s non-ECC (2 x 32 GB), 2 TB PCIe Gen5 NVMe™ M.2 SSD
Intel Core™ Ultra 9 285K (up to 5.7 GHz with Intel Turbo Boost Technology, 36 MB L3 cache, 24 cores, 24 threads)

StockOut of Stock

ConditionNew

Quantity

Notify me when available

Sales & Technical

Phone: 0161 464 9941

Email: sales@apaxon.co.uk

Manufacturer Warranty

1 year (1/1/1) limited warranty includes 1 year of parts, labor and on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply.

Apaxon® is an authorised reseller of HEWLETT PACKARD INCORPORATED. Warranty claims, repairs, replacements, and credits are fulfilled strictly in accordance with the manufacturer's terms and conditions.

Returns Policy

Business & Consumer Purchases

Orders placed for business use, resale, or onward supply are treated as Business-to-Business (B2B) transactions. B2B sales do not carry an automatic right of cancellation.

Nothing in this policy affects statutory consumer rights under UK law.

Consumer Cancellation (B2C Only)

Consumers may cancel within 14 days of delivery under the Consumer Contracts Regulations 2013.
Cancellation must be confirmed in writing within 14 days of delivery.
Goods must be returned within 14 days of cancellation.
Items must be unused beyond reasonable inspection and in resaleable condition.
Return shipping costs are the customer's responsibility.
Prepaid return labels are not provided for change-of-mind returns.
Refunds are processed after inspection and issued to the original payment method.

Faults & Delivery Issues

Transit damage or shortages must be reported within 48 hours of delivery.
Visible defects must be reported within 7 days of delivery.
Hidden faults must be reported within 7 days of discovery.
Returns require prior authorisation and a valid RMA reference.
Failure to report within these timeframes may affect eligibility for return or claim.

Business Returns (B2B)

Business customers do not have an automatic right to return non-faulty goods.

Supply chain authorisation
Restocking fees (typically 15–25%)
Inspection approval
Non-refundable outbound carriage

Return shipping is the responsibility of the buyer unless agreed otherwise.

Non-Returnable Items

Software, licences, activation keys, and digital products
Special-order or non-standard procurement items
Opened consumables
Items not in resaleable condition

Overview

HP Z2 Tower G1i, Intel Core Ultra 9, 285K, 64 GB, DDR5-SDRAM, 2 TB, Windows 11 Pro

Specifications

Processor

Performance-core Max Turbo Frequency: 5.5 GHz GHz
Performance-core base frequency: 3.7 GHz GHz
Efficient-core base frequency: 3.2 GHz GHz
Processor cache: 36 MB MB
Processor family: Intel Core Ultra 9
Processor manufacturer: Intel
Processor generation: Intel Core Ultra (Series 2)
Processor threads: 24
Processor boost frequency: 5.7 GHz GHz
Performance cores: 8
Efficient cores: 16
Efficient-core Max Turbo Frequency: 4.6 GHz GHz
Processor model: 285K
Processor cores: 24
Maximum turbo power: 250 W W
Processor cache type: L3
Processor base power: 125 W W

Memory

Maximum internal memory: 128 GB GB
Non-ECC: Yes
Memory data transfer rate: 5600 MT/s MT/s
Internal memory: 64 GB GB
Internal memory type: DDR5-SDRAM
Memory layout (slots x size): 2 x 32 GB GB
Memory clock speed: 5600 MHz MHz
Memory module type: UDIMM

Ports & interfaces

USB 2.0 ports quantity: 3
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 6
DisplayPorts quantity: 2
DisplayPort version: 1.4
Ethernet LAN (RJ-45) ports: 1
Line-out: Yes
Line-in: Yes
Microphone in: Yes
USB 3.2 Gen 2x2 Type-C ports quantity: 2
Combo headphone/mic port: Yes

Power

Power supply input voltage: 100 - 240 V V
Power supply input frequency: 50 - 60 Hz Hz
Power supply: 700 W W

Design

Colour name: Black
Product colour: Black
Placement supported: Vertical
Number of 5.25" bays: 1
Introduction year: 2025
Chassis type: Tower
Intel® vPro™ Platform Eligibility: No
Country of origin: Czech Republic

Brand-specific features

HP segment: Business
HP Artificial Intelligence: AI Workstation, AI PC
HP Support Assistant: Yes
HP GTIN (EAN/UPC): 199251982903

Display

Display included: No

Weight & dimensions

Depth: 426 mm mm
Weight: 8.6 kg kg
Width: 175 mm mm
Height: 175 mm mm

Audio

Audio chip: Realtek ALC3205

Packaging data

Package width: 590 mm mm
Package depth: 490 mm mm
Package height: 295 mm mm
Package weight: 12.5 kg kg

Carbon footprint

Total carbon footprint (kg of CO2e): 630
Carbon emissions, manufacturing (kg of CO2e): 311
Carbon emissions, logistics (kg of CO2e): 6
Carbon emissions, end-of-life (kg of CO2e): 2
Total carbon emissions, w/o use phase (kg of CO2e): 315

Other features

UNSPSC-code: 43211515

Sustainability

Sustainable technologies and materials: Low halogen; Bulk packaging available; 10% ITE-derived closed loop plastic; 25% ocean-bound plastic in system fans; Product Carbon Footprint; Contains at least 60% post-consumer recycled plastic; System has a QR code enabled experience where the user has access to a product portal – beginning December 2025, this is complete with product feature highlights, sustainability information, getting started guides, and direct setup and support options; New Energy Consumption dashboard available to customers providing timely carbon usage including recommended actions users can take to decrease carbon footprint
Sustainability compliance: Yes
Sustainability certificates: ENERGY STAR, EPEAT, TCO

Supplier features

Manufacturer warranty: 1 year (1/1/1) limited warranty includes 1 year of parts, labor and on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply.
Support service included: HP 3y NBD Onsite WS Bundling. For terms and conditions, please visit https://h20195.www2.hp.com/v2/GetPDF.aspx/4AA5-6385EEE & https://www8.hp.com/h20195/v2/getpdf.aspx/4AA5-7123EEGB.pdf

Neural processor unit (NPU)

NPU performance up to: 13 TOPs TOPs
Neural processor unit (NPU): Intel AI Boost
Windows Studio effects support: Yes
Sparsity support: Yes
GPU performance up to: 8 TOPs TOPs
AI software frameworks supported by NPU: DirectML, OpenVINO, Windows ML, ONNX RT, WebNN
Total processor performance up to: 36 TOPs TOPs

Storage

Total storage capacity: 2 TB TB
Number of SSDs installed: 1
Number of storage drives installed: 1
Total SSDs capacity: 2 TB TB
SSD interface: PCI Express 5.0
NVMe: Yes
SSD form factor: M.2
Storage media: SSD
Optical drive type: No
SSD capacity: 2 TB TB

Graphics

Discrete graphics card model: NVIDIA RTX 4000 Ada
Discrete graphics card: Yes
On-board graphics card: Yes
Discrete graphics memory type: GDDR6
Discrete GPU manufacturer: NVIDIA
On-board graphics card model: Intel® Graphics
Discrete graphics card memory: 20 GB GB
Number of discrete graphics cards: 1
On-board GPU manufacturer: Intel
On-board graphics card family: Intel® Graphics

Software

Operating system installed: Windows 11 Pro

Processor special features

Intel® Turbo Boost Technology: Yes

Performance

Motherboard chipset: Intel W880
Product type: Workstation
Market positioning: Performance
Password protection: Yes
Password protection type: BIOS, Power on

Certificates

Low halogen: Yes

Logistics data

Harmonized System (HS) code: 8471500000

HP Z2 TWR G1I U9-285K 64/2T W11P — image 1

Smaller, Functional Design

The stunning new design features front and rear ledges, so you can easily move your system from location to location.

HP Anyware

Access the power of your Z from any device with HP Anyware—remote access software delivering fast responsiveness and image quality, even in film editing and data visualizations.^[8]

Reengineered performance. Refined cooling.

Unleash the power of up to 600W, triple-wide graphics and an Intel® Core™ Ultra processor^[1]. Smart fan control tunes fan speeds in real-time. New lattice venting optimizes airflow intake.

HP recommends Windows 11 Pro for business

Work anywhere without compromising on performance with Windows 11 and HP collaboration, security, and connectivity technology. Summarize and rewrite content, get relevant content recommendations, and stay organized with Microsoft Copilot.^[7]

Professional Graphics

Design, render and simulate seamlessly with up to NVIDIA RTX™ 4000 Ada graphics with PCIe G5 high speed bandwidth

Independent Software Vendor Certifications

Work with confidence knowing your PC is certified by leading software vendors to ensure peak performance even on complex projects.

WiFi Connectivity

Wi-Fi 7 can provide higher data rates than Wi-Fi 6E.^[9]

Help protect our shared future

At HP, we care about the impact our products have on our people, communities, and planet. That’s why this device is EPEAT® Gold^[5] with Climate+ and the outer box packaging is 100% sustainably sourced.^[6]

Built to expand. Power to grow.

Need to upgrade graphics? Increase memory or storage?^[2] Add specialized PCIe cards? With room to expand and tool-less access, you can easily upgrade and add components as needs evolve. Well suited for rack environments, now fit 1 unit in a 4U rack.^[3]

Power AI-accelerated workflows

Accelerate AI inferencing and development with the Z2 Tower AI workstation. Iterate and problem solve faster on your local device with a powerful discrete GPU delivering AI TOPS while a built-in NPU^[4] takes on productivity tasks.

^[1] Multicore is designed to improve performance of certain software products. Not all customers or software applications will necessarily benefit from use of this technology. Performance and clock frequency will vary depending on application workload and your hardware and software configurations. Intel ’s numbering is not a measurement of clock speed. Features and software that require a NPU may require software purchase, subscription or enablement by a software or platform provider, and third-party software may have specific configuration or compatibility requirements. Performance varies by use, configuration, and other factors.
^[2] Memory and storage are optional features that must be configured at purchase.
^[3] Rack mounting hardware sold separately.
^[4] Features and software that require a NPU may require software purchase, subscription or enablement by a software or platform provider, and third-party software may have specific configuration or compatibility requirements. Performance varies by use, configuration, and other factors.
^[5] HP paper and fiber based packaging for PCs, displays, home and office print, and supplies is reported by suppliers as recycled or certified, with a minimum of 97% by volume verified by HP. Packaging is the box that comes with the product and all paper-based materials inside the box. Packaging for personal systems accessories and spare parts is not included.
^[6] Based on US EPEAT registration according to IEEE 1680.1-2018 EPEAT. Status varies by country. Visit www.epeat.net for more information.
^[7] Not all features are available in all editions or versions of Windows. Systems may require upgraded and/or separately purchased hardware, drivers, software or BIOS update to take full advantage of Windows functionality. Windows 11 is automatically updated, which is always enabled. ISP fees may apply and additional requirements may apply over time for updates. See http://www.windows.com. Microsoft Copilot requires Windows 11. Some features require an NPU. Timing and availability will be dependent on Microsoft and varies by market and device. Requires Microsoft account to log in. Where Copilot is not available, the Copilot key will lead to the Bing search engine. See http://aka.ms/WindowsAIFeatures.
^[8] Network access required. HP Anyware software and licensing are available through a 1- or 3-year subscription. Renewal is required after the subscription term. HP Anyware subscriptions are based on the number of concurrent PCoIP connections used (pay for the number of host connections, not the software) with a minimum order quantity of 5. For a limited time, an HP Anyware Professional subscription also includes access and support for ZCentral Remote Boost and ZCentral Connect and is available for purchase through an HP reseller or contact sales at hp.com/Anyware. ZCentral Remote Boost Sender requires Windows 10 and 11, RHEL/CentOS (7 or 8), or UBUNTU 18.04 or 20.04 LTS operating systems. macOS (10.14 or newer) operating system and ThinPro 7.2 are only supported on the receiver side. ZCentral Connect requires Windows (10 or 11) or Windows Server (2016 or 2019) operating system, Microsoft Active Directory and Intel Active Management Technology for select features. For system requirements and to install HP Anyware and Anyware Manager, refer to the Admin Guides at: https://docs.teradici.com/find/product/hp-anyware.
^[9] Based on HP internal testing using Chariot download benchmark. Data rates subject to environment, network conditions, and other factors.
Technical specification disclaimers:
Not all features are available in all editions or versions of Windows. Systems may require upgraded and/or separately purchased hardware, drivers, software or BIOS update to take full advantage of Windows functionality. Windows is automatically updated and enabled. High speed internet and Microsoft account required. ISP fees may apply and additional requirements may apply over time for updates. See http://www.windows.com.
Not all features are available in all editions or versions of Ubuntu. Systems may require upgraded and/or separately purchased hardware, drivers, software or BIOS to take full advantage of Ubuntu functionality. Ubuntu may be automatically updated. ISP fees may apply and additional requirements may apply over time for updates.
For detailed OS/hardware support information for Linux, see: http://www.hp.com/support/linux_hardware_matrix .
Multicore is designed to improve performance of certain software products. Not all customers or software applications will necessarily benefit from use of this technology. Performance and clock frequency will vary depending on application workload and your hardware and software configurations. Intel’s numbering, branding and/or naming is not a measurement of higher performance.
Features and software that require a NPU may require software purchase, subscription or enablement by a software or platform provider, and third party software may have specific configuration or compatibility requirements. Performance varies by use, configuration, and other factors.
Multi-core is designed to improve performance of certain software products. Not all customers or software applications will necessarily benefit from use of this technology. Performance and clock frequency will vary depending on application workload and your hardware and software configurations. Intel’s numbering, branding and/or naming is not a measurement of higher performance.
Intel Turbo Boost performance varies depending on hardware, software and overall system configuration. See http://www.intel.com/technology/turboboost/ for more information.
Wireless access point and Internet service required and sold separately. Availability of public wireless access points limited. Wi-Fi 7 (802.11BE) functionality requires compatible Windows 11 24H2 OS, compatible processor, and separately purchased Wi-Fi 7 router to support backward compatibility with prior 802.11 specs. Available in countries where Wi-Fi 7 is supported.
HP Performance Advisor Software - HP Performance Advisor is ready to help you get the most out of your HP Workstation from day one—and every day after. Learn more or download at: http://hp.com/PerformanceAdvisor .
HP Manageability Integration Kit can be downloaded from http://www8.hp.com/us/en/ads/clientmanagement/overview.html .
HP Secure Erase for the methods outlined in the National Institute of Standards and Technology Special Publication 800-88 ""Clear"" sanitation method. HP Secure Erase does not support platforms with Intel Optane™.
HP Sure Click requires Windows 10 Pro or higher or Enterprise. See https://bit.ly/2PrLT6A_SureClick for complete details.
HP BIOSphere Gen6 features may vary depending on the platform and configuration.
HP Sure Admin requires Windows 11, HP BIOS, HP Manageability Integration Kit from http://www.hp.com/go/clientmanagement and HP Sure Admin Local Access Authenticator smartphone app from the Android or Apple store.
HP Client Security Manager Gen6 requires Windows and is available on the select HP PCs.
HP Sure Start is available on select HP PCs and requires Windows 10 and higher.
HP Sure Recover is available on select HP PCs and requires Windows 10 or Windows 11 and an open network connection. You must back up important files, data, photos, videos, etc. before using HP Sure Recover to avoid loss of data. Network based recovery using Wi-Fi is only available on select PCs.
HP Sure Sense is available on select HP PCs with Windows 10 Pro, Windows 10 Enterprise, Windows 11 Pro, or Windows 11 Enterprise OS.
Recycled metal is expressed as a percentage of the total weight of the metal according to ISO 14021 definitions for metal parts over 25 grams.
Recycled plastic is expressed as a percentage of the total weight plastic. Post-consumer recycled is based on the definition set in the EPEAT standard for computers, IEEE 1680.1-2018 standard.
HP paper and fiber based packaging for PCs, displays, home and office print, and supplies is reported by suppliers as recycled or certified, with a minimum of 97% by volume verified by HP. Packaging is the box that comes with the product and all paper-based materials inside the box. Packaging for commercial, personal systems accessories, and spare parts is not included.
HP Sure Run is available on select HP PCs and requires Windows 10 and higher.
Based on US EPEAT registration according to IEEE 1680.1-2018 EPEAT. Status varies by country. Visit www.epeat.net for more information.
Wi-Fi 6E requires a Wi-Fi 6E router, sold separately, to function in the 6GHz band. The availability of public wireless access points is limited. Wi-Fi 6E is backward compatible with prior 802.11 specs and available in countries where Wi-Fi 6E is supported.
myHP requires Windows OS.
HP Cloud Recovery is available for Z by HP, HP Elite and Pro desktops and laptops PCs with Intel or AMD processors and requires an open, wired network connection. Note: You must back up important files, data, photos, videos, etc. before use to avoid loss of data. Detail please refer to: https://support.hp.com/us-en/document/c05115630 .
HP Tamper Lock must be enabled by the customer or your administrator.
HP Anyware software and licensing are available through a 1- or 3-year subscription. Network access required. Renewal is required after the subscription term. HP Anyware subscriptions are based on the number of concurrent PCoIP connections used (pay for the number of host connections, not the software) with a minimum order quantity of 5. For a limited time, an HP Anyware Professional subscription also includes access and support for ZCentral Remote Boost and ZCentral Connect and is available for purchase through an HP reseller or contact sales at hp.com/Anyware. ZCentral Remote Boost Sender requires Windows 10 and 11, RHEL/CentOS (7 or 8), or UBUNTU 18.04 or 20.04 LTS operating systems. macOS (10.14 or newer) operating system and ThinPro 7.2 are only supported on the receiver side. ZCentral Connect requires Windows (10 or 11) or Windows Server (2016 or 2019) operating system, Microsoft Active Directory and Intel Active Management Technology for select features. For system requirements and to install HP Anyware and Anyware Manager, refer to the Admin Guides at: https://docs.teradici.com/find/product/hp-anyware .
Percentage of ocean-bound plastic contained in each component varies by product. Ocean Bound plastic is expressed as a percentage of the total weight plastic. Ocean Bound plastic is based on the definition set by the UL2809 standard.
HP Client Catalog not preinstalled, however available for download at https://www.hp.com/us-en/solutions/client-managementsolutions.html .
HP Driver Packs not preinstalled, however available for download at http://www.hp.com/go/clientmanagement .
HP Client Management Script Library https://www.hp.com/us-en/solutions/client-management-solutions.html#tab=manageability-tools .
HP Image Assistant not preinstalled, however available for download at https://ftp.ext.hp.com/pub/caps-softpaq/cmit/HPIA.html .
HP Support Assistant is available on Windows. For more information, please visit www.support.hp.com/help/hp-support-assistant .
TCO Certified configurations available when ENERGY STAR configurations are selected with a USB Type-C connector. ENERGY STAR available with a combination of high-performance CPU's, high-performance GPU's and select memory configurations.
TCO Certified is an ISO 14024 Type 1 sustainability label for IT products. Compliance with all criteria is independently verified.
A product carbon footprint is defined as the total amount of greenhouse gases emitted directly and indirectly by a product over its lifetime. Greenhouse gas emissions are reported as global warming potential for 100-year time horizon (GWP-100) in units of CO2 equivalence. Calculations are done in accordance with ISO 14040 & ISO 14044. Individual values may not sum to total due to rounding.

Customer Reviews

Authorised Technology Partners

All Verified

Authorised Partner

Lenovo

Authorised Partner

Intel

Authorised Partner

This product is out of stock

HP Z2 TWR G1I U9-285K 64/2T W11P

Similar Products