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Thunderbolt Network Cards

All Network Cards

9 Thunderbolt network cards from ATTO and Sonnet. Most cost $180 to $2,091, and half cost less than $650.

All filtersFilters (1)×
Interface: Thunderbolt  ×Clear all
BrandATTO2Sonnet2Apple1OWC1Promise Technology1StarTech.com1Zunate1
Speed104111001251
InterfaceThunderbolt9
Port typeRJ454SFP282QSFP1SFP1
PriceUnder $251Under $2002Under $7001Under $1,0001$150 & above6$600 & above4$2,000 & above2$3,000 & above1
Clear allShow 9 Network Cards
Interface: Thunderbolt  ×9 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
OWC

10 Speed, Thunderbolt, RJ45

+10 Gb/s Ethernet speed over an RJ45 port
+Connects through a Thunderbolt 4 interface
+Thunderbolt 4 link rated at 40Gb/s
$199.99
as of 11/04/2026 06:06 PST - Details
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
Sonnet

25 Speed, Thunderbolt, SFP28

+Connects over Thunderbolt for external use
+Two SFP28 ports for 25 Gbps speeds
+Fast 25 Gbps link speed
−Requires SFP28 optical transceivers for connection
$999.99
as of 11/04/2026 06:05 PST - Details
Promise Technology

10 Speed, Thunderbolt, RJ45

+Thunderbolt connection for a high-speed link to a computer
+RJ45 port for standard Ethernet cabling
+10 Gbps speed for fast wired network transfers
−Requires a computer with a Thunderbolt port
No current price. Check it at the store.
Apple

1 Speed, Thunderbolt

+Adds Gigabit Ethernet through a Thunderbolt port
+Thunderbolt connection gives a fast link to the computer
+Provides wired network access on Thunderbolt-equipped machines
$24.99
as of 11/04/2026 10:06 PST - Details
Zunate

1 Ports, Thunderbolt, RJ45

+Connects through Thunderbolt 3 for high speed networking
+RJ45 port accepts standard Ethernet cables
+Adds a wired network port to Thunderbolt 3 devices
No price recorded yet.
StarTech.com

10 Speed, Thunderbolt, RJ45

+10 Gbps external Ethernet speed
+Connects over Thunderbolt 3, 4, and 5
+Multi-gigabit speed support
$179.99
as of 11/04/2026 03:08 PST - Details

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
100ThunderboltQSFPn/a$2,091.79
as of 11/04/2026 02:10 PST - Details
10ThunderboltRJ45n/a$199.99
as of 11/04/2026 06:06 PST - Details
ThunderboltSFPn/a$3,022.27
as of 11/04/2026 03:06 PST - Details
10ThunderboltSFP28n/a$649.99
as of 11/04/2026 06:05 PST - Details
25ThunderboltSFP28n/a$999.99
as of 11/04/2026 06:05 PST - Details
10ThunderboltRJ45n/aNo current price
1Thunderboltn/a$24.99
as of 11/04/2026 10:06 PST - Details
ThunderboltRJ45n/aNo current price
10ThunderboltRJ45n/a$179.99
as of 11/04/2026 03:08 PST - Details

Before you buy

Other Interface options

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Popular filters

Network Cards under $100804Network Cards under $75762Network Cards under $50707Network Cards under $25546USB Network Cards473RJ45 Network Cards473PCIe Network Cards320Network Cards with Intel Controllers207

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