Hardware Spec Index

Tessarix NX-4121 XT 5GbE RJ45 PCIe Network Card

Network Cards · Tessarix · SKU NX4121-XT · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index1,951 (Network Cards scale)
Category rank#8,808
Street price$59
Power2 W
Performance per dollar33.07
Released2023

Specifications

BrandTessarix
ModelTessarix NX-4121 XT
Speed5GbE (5G/1G/100M)
Ports1× RJ45
Host interfacePCIe 3.0 x1
CablingCat5e or better (100 m)
StandardIEEE 802.3bz (2.5G/5GBASE-T)
Jumbo framesUp to 9 KB
OffloadsTSO, checksum offload
Wake-on-LANYes
VLANIEEE 802.1Q
OS supportWindows 11, Linux, FreeBSD

Related guides

2.5GbE, 5GbE and 10GbE NetworkingPCIe Lanes Explained

Similar Network Cards

ModelBenchmarkPriceCompare
Tessarix NX-5211 Core 5GbE RJ45 USB Adapter1,917$59Compare
Tessarix NX-7317 Max 10GbE SFP+ PCIe Network Card2,883$119Compare
Tessarix NX-1034 Core 25GbE SFP28 PCIe Network Card5,777$409Compare
Vantrel NX-8539 Max 10GbE RJ45 PCIe Network Card3,762$239Compare
Vantrel NX-6387 Max 10GbE SFP+ PCIe Network Card3,741$199Compare
Tessarix NX-4580 SE 2.5GbE RJ45 PCIe Network Card1,755$39Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-4121 XT 5GbE RJ45 PCIe Network Card”, https://vextor7.com/item/43038910 (accessed 2026-10-26).