Hardware Spec Index

Tessarix NX-8440 Ultra Dual-Port 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX8440-ULTRA · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index5,971 (Network Cards scale)
Category rank#3,004
Street price$439
Power8 W
Performance per dollar13.60
Released2020

Specifications

BrandTessarix
ModelTessarix NX-8440 Ultra
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
Quorvex NX-5318 Core 5GbE RJ45 USB Adapter3,785$209Compare
Strivon NX-3179 Max Dual-Port 10GbE RJ45 PCIe Network Card6,100$499Compare
Vantrel NX-9084 Plus 25GbE SFP28 PCIe Network Card5,479$429Compare
Tessarix NX-8391 Pro 10GbE RJ45 Thunderbolt Adapter5,204$379Compare
Quorvex NX-2230 Ultra 25GbE SFP28 PCIe Network Card4,712$289Compare
Strivon NX-3063 Plus 2.5GbE RJ45 USB Adapter1,278$39Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-8440 Ultra Dual-Port 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/3566489 (accessed 2026-10-21).