ULANSeN
Dual-Port 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The Dual-Port 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller is a mid-pack option worth checking against alternatives in the networking cards category, priced around $36.99, rated 4.0★ across 40 verified Amazon reviews. Worth shortlisting, but check close alternatives before deciding.
SpecPicks Verdict
SpecPicks classifies Dual-Port 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps… as a mid-pack option worth checking against alternatives in the networking cards category, based on 40 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. ULANSeN'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 4.0★ customer rating
- ✓ Compatible for X1,X2,X4,X8,X16 with Low Profile Bracket
- ✓ Backed by ULANSeN's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ 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
- Compatible for X1,X2,X4,X8,X16 with Low Profile Bracket
- Win7/8/10/11,Windows Server 2012/2008 Centos/RHEL 6/7/8, Ubuntu 16/18/19/20, Debian 9/10/11 PVE,IKUAI,Unraid 6.9 and above,DSM 6.2.3/6.2.4/7.0.1/7.1,OpenWrt,Vmware Esxi 5/6(Doesn’t support ESXI 7.0)
- Compatible with the IEEE 802.3u specification for 10/100Mbps Ethernet, the IEEE 802.3ab specification for 1000Mbps Ethernet and the IEEE 802.3bz specification for 2500Mbps Ethernet.
- It is also available via CAT5e UTP cable or CAT3 UTP (10Mbps only) cable to provide high speed transmission. It is suitable for multiple market segments and emerging applications, such as desktops, workstations, servers, communication platforms and embedded applications
- Supports an auxiliary power auto-detect function and will auto-configure related bits of the PCI power management registers in PCI configuration space
Full Specifications
| Brand | ULANSeN |
|---|---|
| Color | multicolor |
| Model Number | SE-LG8125B-2BT |
| Built-In Media | 2U Bracket,Manual,CD Driver |
| Mfr Part Number | TXA192 |
| Number of Items | 1 |
| Compatible Devices | Desktop |
| Data Link Protocol | Gigabit Ethernet, IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab IEEE 802.3az, IEEE 802.3bz |
| Data Transfer Rate | 2.5 Gigabits Per Second |
| Hardware Interface | Ethernet, PCI Express 3.0, PCI Express x1 |
| Warranty Description | 1 year |
Ready to buy?
Dual-Port 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller 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 2026-05-26. Price and availability subject to change.
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