StarTech.com
StarTech.com 2 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART (PEX2S952),Green
Bottom line: The StarTech.com 2 Port Native PCI Express RS232 Serial Adapter Card is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Pros & Cons
Pros
- ✓ PCI Express Serial Card
- ✓ Backed by StarTech.com's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
This dual profile PCI Express RS-232 Serial card adds two RS-232 (DB9) Serial Ports to existing systems using a single PCI Express slot while providing optimized performance based on a native single-chip design (Oxford OXPCIe952).Primary InformationForm Factor : Plug-in card Networking / Ports Qty : 2 Data Transfer Rate : 460 Kbps Networking Interface : PCI Express Networking Type : UART Serial Card Dimensions&MiscellaneousDepth : Width : Height : Service&SupportService & Support Type : Lifetime warranty UNSPSC CodeUNSPSC Code : 43201601
SpecPicks Verdict
SpecPicks scored StarTech.com 2 Port Native PCI Express RS232 Serial Adapter Card using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. StarTech.com's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Add 2 RS-232 serial ports to your full height or low profile computer through a PCI Express slot
- PCI Express Serial Card
- PCI-e Serial Card
- PCI Express RS232
- RS232 Card
Full Specifications
| Brand | StarTech.com |
|---|---|
| Color | Green |
| Model Number | PEX2S952 |
| Item Dimensions | 4.99 x 3.79 x 0.99 inches |
| Mfr Part Number | PEX2S952 |
| Number of Items | 1 |
| Number of Ports | 2 |
| Power Plug Type | No Plug |
| Compatible Devices | Printer |
| Warranty Description | Lifetime warranty |
| Item dimensions L x W x H | 4.99 x 3.79 x 0.99 inches |
| Specific Uses For Product | personal |
| External Testing Certification | CE, FCC |
| Global Trade Identification Number | 00065030831581, 00088021339743, 04058829151577 |
Ready to buy?
StarTech.com 2 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART (PEX2S952),Green is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related Expansion Cards
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
- How to Build a Windows 98 Retro PC in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Retro Handhelds in 2026 — From $35 to $500
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
More reviews from the SpecPicks archive
Browse all reviews →- Best PC Upgrades to Buy Before the 2026 Memory Price Spike
- Microsoft and Mistral Sign Multi-Billion Europe AI Infra Deal
- Logitech G29 vs HORI Racing Wheel Overdrive for Entry Sim Racing
- SteamOS Boots on Intel Hardware in Community Hack
- Mac Studio M3 Ultra vs RTX 5090 for AI Inference in 2026
- Audio DSP Firmware for the Raspberry Pi Pico: A 2026 Guide
- Ryzen 7 9800X3D vs Ryzen 9 9950X3D: Which X3D Wins at 1440p in 2026?
- AI-Assisted Voodoo Driver Surgery on Windows 98
- Best Streaming Setup Bundle in 2026: 5 Picks From Mic to Stream Deck
- Voodoo 5 6000 Benchmarks: Quake III at Five Resolutions
- Intel i7-9700K vs Ryzen 7 5700X for a Budget 2026 Gaming Build
- AVX-512 Speeds Up Linux Software RAID by Up to 41% on AMD Ryzen
- Noctua NH-U12S vs DeepCool AK620 for the Ryzen 7 5800X
- Best Fighting Game Controller and Arcade Stick for PC in 2026
- DualSense vs 8BitDo Pro 2 vs GameSir G7 SE: Best PC Controller in 2026
- Raspberry Pi 4 8GB vs Ryzen 5 2600 for Gemma 3 4B: Which Cheap Box Wins?
- Best Gaming Mice for Competitive FPS in 2026
- Microsoft + Nvidia Agent PCs vs a DIY RTX 3060 12GB Local-Agent Box
- Ryzen 7 5700X vs 5800X for a 2026 Gaming Build: Which AM4 Chip Wins?
- Stable Diffusion vs Flux — which open image model wins in 2026?
- Local LLM PC Build 2026: What 12GB of VRAM Really Runs
- Acti Brings AI Agents Into Your Smartphone Keyboard
- GLM-5.2: Probably the Most Powerful Text-Only Open-Weights LLM
- Build an Always-On Raspberry Pi Zero W Project: 24/7 FM Radio and More
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090