StarTech.com
2 Port PCI Low Profile RS232 Serial Adapter Card with 16550 UART - Serial Adapter - PCI - RS-232 x 2 - PCI2S550_LP
*Price sourced from Amazon.com. Last updated 2026-07-06. Price and availability subject to change.
Bottom line: The 2 Port PCI Low Profile RS232 Serial Adapter Card with 16550 UART - Serial Adapter - PCI - RS-232 x 2 - PCI2S550_LP is a niche pick — read recent reviews before buying in the expansion cards category, priced around $28.00. Read recent reviews carefully before committing.
This 2 Port 16550 Serial Card can be installed in a PCI slot to add two serial ports - a cost-effective solution for connecting any new serial device or old legacy serial device, with data transfer rates of up to 115.2 Kbps. The serial card features a low profile bracket, suitable for installation in low profile/small form factor computer cases.Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more, to your system, the adapter card supports IRQ sharing and operates flawlessly with Windows 7, Server 2008 R2, Vista, XP, Server 2003…
SpecPicks Verdict
SpecPicks classifies StarTech.com 2 Port PCI Low Profile RS232 Serial Adapter Card with… as a niche pick — read recent reviews before buying in the expansion cards category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. StarTech.com's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ RS232 Card
- ✓ Backed by StarTech.com's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI expansion slot
- RS232 Card
- PCI Serial Card
- PCI RS232
- Low Profile PCI Serial Adapter
Full Specifications
| Brand | StarTech.com |
|---|---|
| Style | Classic |
| Style Name | Classic |
| Unit Count | 2.0 Count |
| Model Number | PCI2S550_LP |
| Mfr Part Number | PCI2S550_LP |
| Compatible Devices | Personal Computer, Printer |
| Hardware Interface | PCI |
| Warranty Description | Lifetime warranty |
Ready to buy?
StarTech.com 2 Port PCI Low Profile RS232 Serial Adapter Card with 16550 UART - Serial Adapter - PCI - RS-232 x 2 - PCI2S550_LP is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-06. Price and availability subject to change.
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