Hardware Spec Index

Vantrel NX-3721 Ultra 2.5GbE RJ45 USB Adapter

Network Cards · Vantrel · SKU NX3721-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index1,562 (Network Cards scale)
Category rank#24,129
Street price$39
Power2 W
Performance per dollar40.05
Released2022

Specifications

BrandVantrel
ModelVantrel NX-3721 Ultra
Speed2.5GbE (2.5G/1G/100M)
Ports1× RJ45
Host interfaceUSB 3.2 Gen 1 (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
Tessarix NX-5113 Core Dual-Port 10GbE SFP+ PCIe Network Card4,303$269Compare
Tessarix NX-3467 Ti 25GbE SFP28 PCIe Network Card5,718$469Compare
Tessarix NX-4172 Pro 10GbE SFP+ PCIe Network Card4,825$299Compare
Quorvex NX-6902 Max 25GbE SFP28 PCIe Network Card5,164$369Compare
Strivon NX-8708 Max 2.5GbE RJ45 PCIe Network Card895$29Compare
Vantrel NX-3289 Core 5GbE RJ45 USB Adapter3,536$179Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Vantrel NX-3721 Ultra 2.5GbE RJ45 USB Adapter”, https://vextor7.com/item/4100483 (accessed 2026-10-19).