Hardware Spec Index

Tessarix NX-2581 SE Dual-Port 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX2581-SE · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index4,559 (Network Cards scale)
Category rank#24,283
Street price$319
Power8 W
Performance per dollar14.29
Released2021

Specifications

BrandTessarix
ModelTessarix NX-2581 SE
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-7002 Core 2.5GbE RJ45 USB Adapter2,764$109Compare
Quorvex NX-1648 Ultra Dual-Port 25GbE SFP28 PCIe Network Card5,770$499Compare
Quorvex NX-6233 SE 10GbE RJ45 PCIe Network Card2,838$129Compare
Quorvex NX-9608 Core Dual-Port 10GbE SFP+ PCIe Network Card2,638$109Compare
Tessarix NX-7723 Prime Dual-Port 10GbE SFP+ PCIe Network Card3,535$159Compare
Strivon NX-7407 Plus 10GbE RJ45 Thunderbolt Adapter4,860$269Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-2581 SE Dual-Port 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/3176227 (accessed 2026-10-19).