An explansion board you insert into your computer so the computer can be connected to a network
HP Thunderbolt 3.0 Flex IO v3 interface cards/adapter Internal

HP Thunderbolt 3.0 Flex IO v3 interface cards/adapter Internal

HP
£74.99
StarTech.com PEXUSB3S22 interface cards/adapter Internal USB 3.2 Gen 1 (3.1 Gen 1)

StarTech.com PEXUSB3S22 interface cards/adapter Internal USB 3.2 Gen 1 (3.1 Gen 1)

StarTech.com
£30.99
Perle IOLAN DS1 interface cards/adapter

Perle IOLAN DS1 interface cards/adapter

Perle
£460.99
Perle IOLAN DS1 interface cards/adapter

Perle IOLAN DS1 interface cards/adapter

Perle
£460.99
StarTech.com 4-Port USB-A PCIe Card, USB 3.2 10Gbps, PCI Express 3.0 Expansion Card, 4x Independent USB

StarTech.com 4-Port USB-A PCIe Card, USB 3.2 10Gbps, PCI Express 3.0 Expansion Card, 4x Independent USB Controllers, Windows/Linux/macOS, TAA-Compliant

StarTech.com
£232.99
Cisco C9300X-NM-8Y-M-O interface cards/adapter Internal SFP+

Cisco C9300X-NM-8Y-M-O interface cards/adapter Internal SFP+

Cisco
£2,023.99
QNAP QXP-830S-3808 interface cards/adapter Internal Mini-SAS, SFF-8644

QNAP QXP-830S-3808 interface cards/adapter Internal Mini-SAS, SFF-8644

QNAP
£437.99
QNAP QXP-1630S-3816 interface cards/adapter Internal Mini-SAS

QNAP QXP-1630S-3816 interface cards/adapter Internal Mini-SAS

QNAP
£620.99
HP 10GBase-T Flex IO interface cards/adapter Internal

HP 10GBase-T Flex IO interface cards/adapter Internal

HP
£201.99
Alcatel-Lucent Enterprise 3EH77238AD interface cards/adapter Internal

Alcatel-Lucent Enterprise 3EH77238AD interface cards/adapter Internal

Alcatel-Lucent
£265.99
Alcatel-Lucent Enterprise 3EH77237AF interface cards/adapter Internal

Alcatel-Lucent Enterprise 3EH77237AF interface cards/adapter Internal

Alcatel-Lucent
£336.99
Alcatel-Lucent Enterprise 3EH77100AB interface cards/adapter Internal

Alcatel-Lucent Enterprise 3EH77100AB interface cards/adapter Internal

Alcatel-Lucent
£315.99