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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.

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StarTech.com 4-port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to Serial DB9 Card, 16950 UART, Desktop Expansion Card, Windows, macOS, Linux - Full/Low-Profile Brackets (PEX4S953) - Serial adapter - PCIe - RS-232 x 4

Name: StarTech.com 4-port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Host Controller Card, PCIe to Serial DB9 Card, 16950 UART, Desktop Expansion Card, Windows, macOS, Linux - Full/Low-Profile Brackets (PEX4S953) - Serial adapter - PCIe - RS-232 x 4
Brand: STARTECH
SKU: PEX4S953
Price: 81.49 GBP
Availability: OutOfStock

Manuf P/N: PEX4S953

APAXON#: 5687347

EAN: 0065030888257

Internal
Host interface: PCIe
Output interface: Serial
Green

StockOut of Stock

ConditionNew

Quantity

Notify me when available

Sales & Technical

Phone: 0161 464 9941

Email: sales@apaxon.co.uk

Manufacturer Warranty

Manufacturer warranty applies. Warranty periods and service levels vary by brand and product type.

Apaxon® is an authorised reseller of STARTECH. 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

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