Hardware Spec Index

Tessarix NX-1859 XT Dual-Port 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX1859-XT · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index6,100 (Network Cards scale)
Category rank#37,349
Street price$439
Power8 W
Performance per dollar13.90
Released2023

Specifications

BrandTessarix
ModelTessarix NX-1859 XT
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-1608 Max 2.5GbE RJ45 PCIe Network Card1,624$39Compare
Strivon NX-6165 Max 10GbE SFP+ PCIe Network Card4,258$229Compare
Strivon NX-8189 Core 2.5GbE RJ45 PCIe Network Card1,416$29Compare
Vantrel NX-4963 Plus 5GbE RJ45 PCIe Network Card3,773$229Compare
Vantrel NX-6157 Prime 2.5GbE RJ45 PCIe Network Card1,028$29Compare
Quorvex NX-3430 Ti 2.5GbE RJ45 USB Adapter2,598$109Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-1859 XT Dual-Port 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/457009 (accessed 2026-10-22).