Hardware Spec Index

Tessarix NX-7891 Ultra Dual-Port 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX7891-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index4,810 (Network Cards scale)
Category rank#40,471
Street price$349
Power8 W
Performance per dollar13.78
Released2021

Specifications

BrandTessarix
ModelTessarix NX-7891 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
Vantrel NX-4622 Prime Dual-Port 25GbE SFP28 PCIe Network Card6,007$399Compare
Vantrel NX-5729 Pro Dual-Port 10GbE SFP+ PCIe Network Card2,617$99Compare
Tessarix NX-4398 SE 5GbE RJ45 PCIe Network Card1,976$69Compare
Strivon NX-9555 Core 5GbE RJ45 PCIe Network Card4,345$229Compare
Tessarix NX-7521 Core Dual-Port 10GbE SFP+ PCIe Network Card4,473$249Compare
Strivon NX-2522 Core 2.5GbE RJ45 PCIe Network Card2,330$99Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-7891 Ultra Dual-Port 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/6522778 (accessed 2026-10-24).