Hardware Spec Index

Tessarix NX-7921 XT 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX7921-XT · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index4,512 (Network Cards scale)
Category rank#7,136
Street price$269
Power6 W
Performance per dollar16.77
Released2025

Specifications

BrandTessarix
ModelTessarix NX-7921 XT
Speed25GbE (25G)
Ports1× SFP28
Host interfacePCIe 4.0 x8
CablingDAC or optical transceiver
StandardIEEE 802.3by (25GBASE-R)
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
Quorvex NX-5949 XT Dual-Port 10GbE SFP+ PCIe Network Card4,695$309Compare
Strivon NX-9537 Edge 2.5GbE RJ45 PCIe Network Card2,547$89Compare
Quorvex NX-9061 Prime 5GbE RJ45 PCIe Network Card1,917$59Compare
Vantrel NX-4171 SE Dual-Port 10GbE SFP+ PCIe Network Card3,101$149Compare
Vantrel NX-7900 SE Dual-Port 25GbE SFP28 PCIe Network Card5,730$479Compare
Strivon NX-9931 SE 5GbE RJ45 PCIe Network Card1,919$49Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-7921 XT 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/573734 (accessed 2026-10-23).