Hardware Spec Index

Tessarix NX-1239 XT 10GbE RJ45 Thunderbolt Adapter

Network Cards · Tessarix · SKU NX1239-XT · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index3,503 (Network Cards scale)
Category rank#43,890
Street price$169
Power9 W
Performance per dollar20.73
Released2024

Specifications

BrandTessarix
ModelTessarix NX-1239 XT
Speed10GbE (10G)
Ports1× RJ45
Host interfaceThunderbolt 4 / USB4
CablingCat6a (100 m) / Cat6 (up to 55 m)
StandardIEEE 802.3an (10GBASE-T)
Jumbo framesUp to 9 KB
OffloadsTSO, LRO, RSS, SR-IOV
Wake-on-LANNo
VLANIEEE 802.1Q
OS supportWindows 11, Linux, FreeBSD

Related guides

2.5GbE, 5GbE and 10GbE NetworkingUSB4 ExplainedPCIe Lanes Explained

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Cite this page: Hardware Spec Index, “Tessarix NX-1239 XT 10GbE RJ45 Thunderbolt Adapter”, https://vextor7.com/item/42327621 (accessed 2026-10-20).