Hardware Spec Index

Tessarix NX-2491 XT 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX2491-XT · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index5,436 (Network Cards scale)
Category rank#16,463
Street price$399
Power6 W
Performance per dollar13.62
Released2023

Specifications

BrandTessarix
ModelTessarix NX-2491 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
Vantrel NX-7612 Ti 5GbE RJ45 USB Adapter3,575$169Compare
Tessarix NX-3939 Pro 2.5GbE RJ45 PCIe Network Card2,435$89Compare
Quorvex NX-5609 Ti 2.5GbE RJ45 PCIe Network Card775$19Compare
Vantrel NX-8143 Plus 2.5GbE RJ45 PCIe Network Card1,611$49Compare
Strivon NX-1236 Prime 2.5GbE RJ45 PCIe Network Card2,361$89Compare
Strivon NX-9304 SE 10GbE SFP+ PCIe Network Card4,326$269Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-2491 XT 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/12686141 (accessed 2026-10-26).