Hardware Spec Index

Tessarix NX-5581 Core 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX5581-CORE · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index6,100 (Network Cards scale)
Category rank#30,107
Street price$469
Power6 W
Performance per dollar13.01
Released2019

Specifications

BrandTessarix
ModelTessarix NX-5581 Core
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
Strivon NX-3981 XT 5GbE RJ45 USB Adapter2,813$109Compare
Quorvex NX-4259 Core 10GbE SFP+ PCIe Network Card6,100$499Compare
Vantrel NX-9367 Ultra 2.5GbE RJ45 USB Adapter2,944$109Compare
Tessarix NX-2708 Pro Dual-Port 10GbE SFP+ PCIe Network Card4,496$309Compare
Strivon NX-4142 Core Dual-Port 10GbE RJ45 PCIe Network Card5,232$369Compare
Quorvex NX-1310 Max 10GbE SFP+ PCIe Network Card4,849$379Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-5581 Core 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/460732 (accessed 2026-10-19).