Hardware Spec Index

Tessarix NX-6621 XT Dual-Port 10GbE RJ45 PCIe Network Card

Network Cards · Tessarix · SKU NX6621-XT · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index6,100 (Network Cards scale)
Category rank#1,812
Street price$499
Power13 W
Performance per dollar12.22
Released2020

Specifications

BrandTessarix
ModelTessarix NX-6621 XT
Speed10GbE (10G)
Ports2× RJ45
Host interfacePCIe 3.0 x8
CablingCat6a (100 m) / Cat6 (up to 55 m)
StandardIEEE 802.3an (10GBASE-T)
Jumbo framesUp to 9 KB
OffloadsTSO, LRO, RSS, SR-IOV
Wake-on-LANYes
VLANIEEE 802.1Q
OS supportWindows 11, Linux, FreeBSD

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Cite this page: Hardware Spec Index, “Tessarix NX-6621 XT Dual-Port 10GbE RJ45 PCIe Network Card”, https://vextor7.com/item/185377 (accessed 2026-10-19).