Hardware Spec Index

Tessarix NX-6660 Ultra 25GbE SFP28 PCIe Network Card

Network Cards · Tessarix · SKU NX6660-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index4,184 (Network Cards scale)
Category rank#2,496
Street price$279
Power6 W
Performance per dollar15.00
Released2026

Specifications

BrandTessarix
ModelTessarix NX-6660 Ultra
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
Tessarix NX-4714 Prime 2.5GbE RJ45 PCIe Network Card929$29Compare
Vantrel NX-7567 Ultra Dual-Port 10GbE RJ45 PCIe Network Card3,855$209Compare
Quorvex NX-6839 Core 10GbE SFP+ PCIe Network Card5,862$439Compare
Vantrel NX-5554 Edge 2.5GbE RJ45 PCIe Network Card1,688$49Compare
Vantrel NX-1546 Ultra 2.5GbE RJ45 PCIe Network Card2,575$89Compare
Tessarix NX-3172 XT Dual-Port 25GbE SFP28 PCIe Network Card4,567$239Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-6660 Ultra 25GbE SFP28 PCIe Network Card”, https://vextor7.com/item/24670326 (accessed 2026-10-19).