Hardware Spec Index

Tessarix NX-6491 Plus Dual-Port 10GbE SFP+ PCIe Network Card

Network Cards · Tessarix · SKU NX6491-PLUS · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index5,597 (Network Cards scale)
Category rank#27,697
Street price$379
Power8 W
Performance per dollar14.77
Released2020

Specifications

BrandTessarix
ModelTessarix NX-6491 Plus
Speed10GbE (10G)
Ports2× SFP+
Host interfacePCIe 3.0 x8
CablingDAC or optical transceiver
StandardSFF-8431 (10GBASE-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
Strivon NX-8817 Max 25GbE SFP28 PCIe Network Card5,498$429Compare
Quorvex NX-1619 Max 5GbE RJ45 PCIe Network Card2,783$109Compare
Vantrel NX-7682 Prime 2.5GbE RJ45 PCIe Network Card857$19Compare
Vantrel NX-8322 Pro 10GbE SFP+ PCIe Network Card4,120$239Compare
Quorvex NX-7342 Core 25GbE SFP28 PCIe Network Card5,867$469Compare
Vantrel NX-9024 Edge 2.5GbE RJ45 PCIe Network Card1,123$29Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-6491 Plus Dual-Port 10GbE SFP+ PCIe Network Card”, https://vextor7.com/item/4773199 (accessed 2026-10-22).