Hardware Spec Index

Tessarix NX-6191 Core Dual-Port 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX6191-CORE · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index4,558 (Network Cards scale)
Category rank#20,662
Street price$259
Power8 W
Performance per dollar17.60
Released2023

Specifications

BrandTessarix
ModelTessarix NX-6191 Core
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-5143 Prime 10GbE RJ45 Thunderbolt Adapter4,883$289Compare
Vantrel NX-9432 Edge 25GbE SFP28 PCIe Network Card6,100$479Compare
Strivon NX-3785 Max Dual-Port 10GbE RJ45 PCIe Network Card3,428$169Compare
Vantrel NX-5655 XT Dual-Port 10GbE SFP+ PCIe Network Card4,517$299Compare
Tessarix NX-8960 Ultra 5GbE RJ45 USB Adapter3,020$139Compare
Vantrel NX-6604 SE 2.5GbE RJ45 USB Adapter2,058$59Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-6191 Core Dual-Port 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/723964 (accessed 2026-10-19).