Network Cards under $700

4 network cards under $700. Prices run $605 to $656.

Sonnet

10 Speed, Thunderbolt, SFP28

+Two 10GbE optical ports for fiber networking

+Connects through Thunderbolt

+Includes two short-range optical transceivers

−Limited to short-range optical connections

$649.99

as of 11/04/2026 06:05 PST - Details

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10 Speed, 4 Ports, RJ45, Intel

+Four RJ45 ports for four 10 Gbps connections

+Intel chip for a 10 Gbps network connection

+Uses standard RJ45 Ethernet cabling

−Short card form factor may not fit every case

$628.00

as of 11/04/2026 09:09 PST - Details

Generic

10 Speed

+Supports 10 Gigabit Ethernet speeds

+Includes dual power ports

+Works as an adapter for 10 Gigabit networks

$604.73

as of 11/04/2026 06:05 PST - Details

Hewlett Packard Enterprise

10 Speed, 2 Ports, RJ45

+Two RJ45 ports provide 10 Gb Ethernet connections

+Rated at 10 Gb per second per port

+FlexibleLOM design fits compatible HPE server slots

$656.00

as of 11/04/2026 06:05 PST - Details

Compare specs

Speed	Interface	Port type	Controller	Spec score	Price
10	Thunderbolt	SFP28		n/a	$649.99 as of 11/04/2026 06:05 PST - Details
10		RJ45	Intel	n/a	$628.00 as of 11/04/2026 09:09 PST - Details
10				n/a	$604.73 as of 11/04/2026 06:05 PST - Details
10		RJ45		n/a	$656.00 as of 11/04/2026 06:05 PST - Details

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