1-Port Network Cards

4 1-Port network cards from Renkforce, 10Gtek, Vogzone and more. Prices run $41 to $223.

SynologySpec score 7.9

10 Speed, 1 Ports, M.2, RJ45

+Combines a 10 Gbps RJ45 port with an M.2 slot

+Model E10M20-T1 fits Synology network storage setups

+Provides 10 Gbps speeds over copper Ethernet cabling

$223.99

as of 11/04/2026 03:08 PST - Details

C&NSpec score 7.9

10 Speed, 1 Ports, M.2, SFP+

+Single SFP+ port for 10 Gigabit Ethernet connections

+Intel 82599 chip for 10GbE networking

+Uses an M.2 M Key slot with four PCIe lanes

−Only one SFP+ port available

$40.99

as of 11/04/2026 03:07 PST - Details

SerounderSpec score 7.9

2.5 Speed, 1 Ports, M.2, RJ45

+Single 2.5 Gbps port for faster wired networking

+Uses an M.2 B M connection for a compact build

+Intel chip with RJ45 port for standard Ethernet cabling

−Requires a free M.2 slot on the motherboard

No price recorded yet.

VogzoneSpec score 8.7

25 Speed, 1 Ports, M.2, SFP28

+1 ports: the most ports of the 59 here

+SR-IOV: only 6 of 59 here have one

$84.99

as of 11/04/2026 03:07 PST - Details

Compare specs

Speed	Ports	Interface	Port type	Controller	Spec score	Price
10	1	M.2	RJ45		7.9	$223.99 as of 11/04/2026 03:08 PST - Details
10	1	M.2	SFP+	Intel	7.9	$40.99 as of 11/04/2026 03:07 PST - Details
2.5	1	M.2	RJ45	Intel	7.9	No current price
25	1	M.2	SFP28	Mellanox	8.7	$84.99 as of 11/04/2026 03:07 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.