Hardware Spec Index

Tessarix NX-4121 Core Dual-Port 10GbE RJ45 PCIe Network Card

Network Cards · Tessarix · SKU NX4121-CORE · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index5,399 (Network Cards scale)
Category rank#46,408
Street price$399
Power13 W
Performance per dollar13.53
Released2023

Specifications

BrandTessarix
ModelTessarix NX-4121 Core
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

Related guides

2.5GbE, 5GbE and 10GbE NetworkingPCIe Lanes Explained

Similar Network Cards

ModelBenchmarkPriceCompare
Tessarix NX-1436 Core 2.5GbE RJ45 PCIe Network Card2,144$79Compare
Tessarix NX-7620 Ti 2.5GbE RJ45 PCIe Network Card1,752$49Compare
Strivon NX-7971 Plus 2.5GbE RJ45 PCIe Network Card973$29Compare
Strivon NX-3777 Core 2.5GbE RJ45 PCIe Network Card1,270$29Compare
Tessarix NX-5951 Max Dual-Port 25GbE SFP28 PCIe Network Card4,995$359Compare
Tessarix NX-4327 Prime 5GbE RJ45 USB Adapter2,985$139Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-4121 Core Dual-Port 10GbE RJ45 PCIe Network Card”, https://vextor7.com/item/19035258 (accessed 2026-10-20).