Hardware Spec Index

Tessarix NX-8921 Ultra Dual-Port 10GbE SFP+ PCIe Network Card

Network Cards · Tessarix · SKU NX8921-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index4,140 (Network Cards scale)
Category rank#21,785
Street price$269
Power8 W
Performance per dollar15.39
Released2019

Specifications

BrandTessarix
ModelTessarix NX-8921 Ultra
Speed10GbE (10G)
Ports2× SFP+
Host interfacePCIe 3.0 x8
CablingDAC or optical transceiver
StandardSFF-8431 (10GBASE-R)
Jumbo framesUp to 9 KB
OffloadsTSO, LRO, RSS, SR-IOV
Wake-on-LANYes
VLANIEEE 802.1Q
OS supportWindows 11, Linux, FreeBSD

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Cite this page: Hardware Spec Index, “Tessarix NX-8921 Ultra Dual-Port 10GbE SFP+ PCIe Network Card”, https://vextor7.com/item/5615310 (accessed 2026-10-20).