Hardware Spec Index

Tessarix NX-8521 Prime 5GbE RJ45 USB Adapter

Network Cards · Tessarix · SKU NX8521-PRIME · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index2,124 (Network Cards scale)
Category rank#40,527
Street price$79
Power3 W
Performance per dollar26.89
Released2020

Specifications

BrandTessarix
ModelTessarix NX-8521 Prime
Speed5GbE (5G/1G/100M)
Ports1× RJ45
Host interfaceUSB 3.2 Gen 2 (Type-C)
CablingCat5e or better (100 m)
StandardIEEE 802.3bz (2.5G/5GBASE-T)
Jumbo framesUp to 9 KB
OffloadsTSO, checksum offload
Wake-on-LANNo
VLANIEEE 802.1Q
OS supportWindows 11, Linux, FreeBSD

Related guides

2.5GbE, 5GbE and 10GbE NetworkingPCIe Lanes Explained

Similar Network Cards

ModelBenchmarkPriceCompare
Quorvex NX-3833 Ultra 5GbE RJ45 USB Adapter2,987$129Compare
Tessarix NX-1318 Ultra Dual-Port 25GbE SFP28 PCIe Network Card4,590$269Compare
Vantrel NX-1845 Core 5GbE RJ45 PCIe Network Card3,218$149Compare
Vantrel NX-4813 Plus 2.5GbE RJ45 PCIe Network Card2,500$89Compare
Quorvex NX-1262 Edge 2.5GbE RJ45 PCIe Network Card1,303$39Compare
Quorvex NX-6368 Ultra 2.5GbE RJ45 PCIe Network Card2,953$119Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-8521 Prime 5GbE RJ45 USB Adapter”, https://vextor7.com/item/94867094 (accessed 2026-10-24).