Hardware Spec Index

Tessarix NX-3972 Ultra Dual-Port 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX3972-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index5,693 (Network Cards scale)
Category rank#3,888
Street price$459
Power8 W
Performance per dollar12.40
Released2026

Specifications

BrandTessarix
ModelTessarix NX-3972 Ultra
Speed25GbE (25G)
Ports2× 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
Tessarix NX-5344 Ultra 25GbE SFP28 PCIe Network Card5,177$399Compare
Strivon NX-2920 Edge 2.5GbE RJ45 PCIe Network Card958$19Compare
Vantrel NX-1410 Ultra Dual-Port 10GbE RJ45 PCIe Network Card5,776$439Compare
Tessarix NX-3146 SE Dual-Port 25GbE SFP28 PCIe Network Card4,645$359Compare
Vantrel NX-1392 XT Dual-Port 10GbE RJ45 PCIe Network Card3,538$159Compare
Strivon NX-9001 Ultra 10GbE SFP+ PCIe Network Card5,095$419Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-3972 Ultra Dual-Port 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/22014822 (accessed 2026-10-22).