Hardware Spec Index

Tessarix NX-2638 SE 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX2638-SE · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index5,266 (Network Cards scale)
Category rank#31,689
Street price$409
Power6 W
Performance per dollar12.88
Released2024

Specifications

BrandTessarix
ModelTessarix NX-2638 SE
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-7283 Pro 25GbE SFP28 PCIe Network Card5,803$429Compare
Strivon NX-2954 Ti 2.5GbE RJ45 USB Adapter2,132$79Compare
Tessarix NX-5644 Core 10GbE RJ45 PCIe Network Card4,807$299Compare
Tessarix NX-5612 Edge 2.5GbE RJ45 PCIe Network Card1,357$39Compare
Vantrel NX-3493 Prime 10GbE RJ45 Thunderbolt Adapter4,501$309Compare
Strivon NX-4421 Core 10GbE RJ45 PCIe Network Card5,358$379Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-2638 SE 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/4736841 (accessed 2026-10-24).