Computer Interface Cards & Adapters
439 productsUpdated June 2026

Brainboxes
Brainboxes ED-038 interface cards/adapter Serial
£141.35

Brainboxes
Brainboxes Universal 1-Port Velocity RS422/485 interface cards/adapter
£76.93

Brainboxes
Brainboxes ES-313 serial server RS-422/485
£162.55

Asus
ASUS IC OHER P2331S-7-01
£12.87

Brainboxes
Brainboxes Universal 1-Port RS232 PCI Card (LP) interface cards/adapte
£76.95

Lenovo
Lenovo 100mm inernl COM2 cle for
£52.53

BAQ
BAQ For Apple MacBook Pro A1989 13 | Replacement USB Type-C I/O Board
£13.13

Asus
ASUS CX1101CM IO FFC 30P 124.5MM
£12.87

Matrox
Matrox CIP-SDM2/EW3 ConvertIP SDM card. 2x SFP. 2x RJ45. 1x RJ45 (ctrl
£235.09

Asus
ASUS E410M IO FFC 16P 0.5MM.L204.5
£12.87

Asus
ASUS M1702Q IO_D.
£33.18

Brainboxes
Brainboxes Universal Dual Velocity RS422/485 PCI Card (LP) interface c
£88.76

Brainboxes
Brainboxes PCI 4 port RS232 (4x25) interface cards/adapter
£337.55

Akasa
Akasa AK-PCCU3-08 interface cards/adapter Internal PCIe
£84.06

i-tec
i-tec Us-C Cle Splier
£26.41

Supermicro
Supermicro AOC-A25G-M2SM interface cards/adapter Internal QSFP28
£340.65

StarTech.com
StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232
£47.30

StarTech.com
StarTech.com 4-Port Serial PCIe Card. Quad-Port PCI Express to RS232/R
£161.84

ASRock
ASROCK Thunderbolt 4 AIC 2-Port Thunderbolt 4, 2-Port DisplayPort, 1-Port USB 2.0 Add-in Card
£71.21

ZPE
ZPE RJ45F to DB9F Cisco Rolled cross converter
£40.36

ZPE
ZPE RJ45F to DB9F Cyclades cross converter
£40.36

Brainboxes
Brainboxes ES-842 serial server RS-422/485
£561.63

Brainboxes
Brainboxes Universal Dual RS232 + LPT interface cards/adapter
£158.95

Asus
ASUS CR1204F IO D./S
£38.60