StarTech
.com USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle (USB2100)
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
Add a 10/100Mbps Ethernet port to your laptop or desktop computer through USB - The USB2100 USB 2.0 to 10/100 Mbps Network Adapter lets you add a Fast Ethernet port to your laptop or desktop computer through USB.This compact USB network adapter offers a dongle design with a built-in cable to avoid cramped connections, making it a perfect solution for adding wired Ethernet connectivity to your desktop without opening the case, or to replace a failed onboard network adapter on your laptop system. Providing half or full-duplex operation, this USB 2.0 Ethernet adapter supports data transfer…
SpecPicks Verdict
SpecPicks classifies StarTech.com USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle… as a solid pick with broad community endorsement in the networking cards category, based on 108 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
- ✓ Solid 4.3★ customer rating
- ✓ Add a 10/100Mbps Ethernet port to your laptop or desktop computer through USB
- ✓ Backed by StarTech'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 a 10/100Mbps Ethernet port to your laptop or desktop computer through USB
- USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle
- USB Network Adapter
- USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle
- USB NIC
- Avoid crowded connections with the integrated USB cable
Full Specifications
| Brand | StarTech.com |
|---|---|
| Color | Black |
| Unit Count | 1 Count |
| Connectivity | USB |
| Model Number | USB2100 |
| Built-In Media | Network adapter |
| Item Type Name | Startech.Com USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle (USB2100) |
| Mfr Part Number | USB2100 |
| Compatible Devices | Desktop |
| Data Link Protocol | USB |
| Data Transfer Rate | 200 Megabits Per Second |
| Hardware Interface | Ethernet, USB 2.0 |
| Warranty Description | 2 year warranty |
| Item Dimensions L x W x H | 6"L x 7"W x 5"H |
Ready to buy?
StarTech.com USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle (USB2100) 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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