Hardware Spec Index

Tessarix NX-7840 Ultra 2.5GbE RJ45 PCIe Network Card

Network Cards · Tessarix · SKU NX7840-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index2,191 (Network Cards scale)
Category rank#36,995
Street price$59
Power3 W
Performance per dollar37.14
Released2021

Specifications

BrandTessarix
ModelTessarix NX-7840 Ultra
Speed2.5GbE (2.5G/1G/100M)
Ports1× RJ45
Host interfacePCIe 3.0 x1
CablingCat5e or better (100 m)
StandardIEEE 802.3bz (2.5G/5GBASE-T)
Jumbo framesUp to 9 KB
OffloadsTSO, checksum offload
Wake-on-LANYes
VLANIEEE 802.1Q
OS supportWindows 11, Linux, FreeBSD

Related guides

2.5GbE, 5GbE and 10GbE NetworkingPCIe Lanes Explained

Similar Network Cards

ModelBenchmarkPriceCompare
Tessarix NX-4056 Prime 5GbE RJ45 PCIe Network Card2,059$59Compare
Vantrel NX-3250 Core 10GbE RJ45 Thunderbolt Adapter3,291$149Compare
Vantrel NX-5915 Pro Dual-Port 10GbE SFP+ PCIe Network Card5,404$389Compare
Strivon NX-9483 Plus 10GbE RJ45 PCIe Network Card5,858$439Compare
Strivon NX-8955 Core 2.5GbE RJ45 PCIe Network Card1,527$39Compare
Vantrel NX-1684 Ti 2.5GbE RJ45 PCIe Network Card865$29Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-7840 Ultra 2.5GbE RJ45 PCIe Network Card”, https://vextor7.com/item/17288697 (accessed 2026-10-24).