Hardware Spec Index

Tessarix NX-7851 Prime 5GbE RJ45 PCIe Network Card

Network Cards · Tessarix · SKU NX7851-PRIME · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index1,786 (Network Cards scale)
Category rank#41,638
Street price$49
Power2 W
Performance per dollar36.45
Released2020

Specifications

BrandTessarix
ModelTessarix NX-7851 Prime
Speed5GbE (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
Vantrel NX-7128 Core 2.5GbE RJ45 PCIe Network Card2,454$99Compare
Tessarix NX-3643 Ultra 10GbE RJ45 PCIe Network Card3,397$169Compare
Vantrel NX-3320 Pro 2.5GbE RJ45 PCIe Network Card928$19Compare
Strivon NX-2076 Ti 5GbE RJ45 PCIe Network Card1,892$59Compare
Tessarix NX-6884 Ultra Dual-Port 10GbE RJ45 PCIe Network Card3,688$209Compare
Quorvex NX-3293 Plus 10GbE RJ45 PCIe Network Card6,100$449Compare

All Network Cards · JSON

Cite this page: Hardware Spec Index, “Tessarix NX-7851 Prime 5GbE RJ45 PCIe Network Card”, https://vextor7.com/item/4332393 (accessed 2026-10-23).