TP-Link
TX401 (US V2.6)
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Check price on AmazonModel: TX401
Single-port 10GBASE-T PCIe 3.0 x4 adapter.
Important limit: Needs a PCIe 3.0 x4 (or larger) slot and a compatible power/cooling setup
How many units?Confirm condition, quantity and included accessories on the retailer’s listing.
Compare versions and packagesSpecifications checked November 5, 2026. Full product details
TX401 adapter, standard and low-profile brackets, quick installation guide, resource CD, 1.5 m Cat6a Ethernet cable
TP-Link TX401 10 Gigabit PCI Express Network Adapter (TX401 US V2.6)
A 10GBASE-T PCIe 3.0 x4 network card that adds a 10 GbE RJ45 port to a desktop or server, with 5G, 2.5G and gigabit fallback and both full- and low-profile brackets.
Selected package: TX401 (US V2.6).
Model: TX401
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| Interface | PCI Express 3.0 x4 slot, one 10GBASE-T RJ45 port |
|---|---|
| Link rates | 10G/5G/2.5G/1000/100 Mbps, auto-negotiated with Fast and Gigabit Ethernet fallback |
| Duplex data rates (maker) | Full-duplex: 10 Gbps; half-duplex: 5 Gbps at 10GBASE-T |
| Standards | IEEE 802.3, 802.3u, 802.3ab, 802.3bz, 802.3an, 802.3az, 802.3x |
| Flow control | IEEE 802.3x |
| LED | Separate link/activity LEDs for 10 Gbps and for 5/2.5/1 Gbps and 100 Mbps |
| Brackets | Standard full-height and low-profile brackets both included for tower or mini-ITX cases |
| System support | Windows 11/10/8.1/8/7, Windows Server 2019/2016/2012 R2, and Linux |
| Cable (maker) | 1.5 m Cat6a cable included, rated for 10 Gbps; Cat5e tops out at gigabit |
| Dimensions (W x D x H) | 4.8 x 3.9 x 0.8 in (120.8 x 98.2 x 21.5 mm) |
| Environment | Operating 0-40 C (32-104 F), 10-90% non-condensing humidity |
| Certification | FCC, CE |
| In the box | TX401 adapter, standard and low-profile brackets, quick installation guide, resource CD, 1.5 m Cat6a Ethernet cable |
From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.
A PCIe Gen3 x8 network expansion card with two 10GbE SFP+ ports, built on a Broadcom BCM57412 controller, for QNAP NAS models and Windows, Ubuntu and Windows Server machines.
A PCIe 10GBase-T network card with a standard RJ45 port that runs 10/5/2.5/1 Gbps and 100 Mbps over ordinary Cat5e-or-better copper cabling.
Check package and model options
A single-port Thunderbolt 3 adapter that adds one 10GbE/NBASE-T RJ-45 port to a Mac, Windows PC, Ubuntu machine or QNAP Thunderbolt 3 NAS.
