Hardware Spec Index

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

Network Cards · Tessarix · SKU NX8921-ULTRA · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index3,956 (Network Cards scale)
Category rank#10,988
Street price$209
Power6 W
Performance per dollar18.93
Released2021

Specifications

BrandTessarix
ModelTessarix NX-8921 Ultra
Speed10GbE (10G)
Ports1× SFP+
Host interfacePCIe 3.0 x4
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 10GbE SFP+ PCIe Network Card”, https://vextor7.com/item/91582188 (accessed 2026-10-23).