StarTech
.com 1 Port PCI Express 10/100 Ethernet Network Interface Adapter Card - Low Profile Network Card (PEX100S)
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
This PCI Express based 10/100 Ethernet Card provides a simple way to connect a PCIe enabled server or workstation to a 10/100 Ethernet network and offers a broad range of features and functions, including support for both Full and Half Duplex operation as well as Wake On LAN (WOL) Power Management. The PEX100S Ethernet Card includes both standard and low profile brackets and is compatible with most mATX (Slimline) and ATX system form factors, and features Auto MDI/MDIX automatic configuration, which helps to simplify installation and configuration.
SpecPicks Verdict
SpecPicks classifies StarTech.com 1 Port PCI Express 10/100 Ethernet Network Interface… as a mid-pack option worth checking against alternatives in the networking cards category, based on 22 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. StarTech'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 networking 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
- ✓ Add a 10/100Mbps Ethernet port to a desktop computer through a PCI Express slot
- ✓ Backed by StarTech's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Below-average customer rating — read recent reviews before buying
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ 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 a 10/100Mbps Ethernet port to a desktop computer through a PCI Express slot
- Compatible with PCI-E equipped computers and RJ-45 ethernet equippment
- PCIe Ethernet Card / PCI express ethernet NCI / 10/100 adapter card
- Cost effective and simple Ethernet networking for a desktop computer systems
- Compliant with IEEE802.3 CSMA/CD, 802.3 10Base-T and 100Base-TX standards
Full Specifications
| Brand | StarTech.com |
|---|---|
| Color | Black |
| Unit Count | 1.0 Count |
| Model Number | PEX100S |
| Mfr Part Number | PEX100S |
| Number of Packs | 1 |
| Compatible Devices | Desktop |
| Data Link Protocol | IEEE 802.3 |
| Data Transfer Rate | 100 Megabits Per Second |
| Hardware Interface | Ethernet |
| Warranty Description | Lifetime warranty |
| Compatible Operating System Family | Linux, Windows |
| Minimum Required Operating System Version | Windows XP |
Ready to buy?
StarTech.com 1 Port PCI Express 10/100 Ethernet Network Interface Adapter Card - Low Profile Network Card (PEX100S) 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 2026-05-23. Price and availability subject to change.
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