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I/O Cards & Adaptors

3,051 productsUpdated August 2026
All (3,051)Audio Cards & Adaptors(906)Graphics Cards & Video Adaptors(208)TV Tuner Cards & Adaptors(1,344)Riser Cards(192)Computer Interface Cards & Adapters(442)
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Brainboxes Universal 3-Port RS232 PCI Card interface cards/adapter

Brainboxes

Brainboxes Universal 3-Port RS232 PCI Card interface cards/adapter

£211.62

ASUS Z240IC IO D./S

Asus

ASUS Z240IC IO D./S

£26.41

Brainboxes Universal 4-Port RS232 PCI Card interface cards/adapter

Brainboxes

Brainboxes Universal 4-Port RS232 PCI Card interface cards/adapter

£317.10

OPREMA WAVE 4 CHANNEL ENCODER LICENSE

OPREMA

OPREMA WAVE 4 CHANNEL ENCODER LICENSE

£72.35

DELL PCIe hunderol 3 expnsion

Dell

DELL PCIe hunderol 3 expnsion

£165.36

NXP MIFARE® DESFire® 2K EV3 Cards (Pack of 100)

NXP

NXP MIFARE® DESFire® 2K EV3 Cards (Pack of 100)

£125.07

AudioCodes ACTS24X7-M1K_S4/YR SUPPORT

AudioCodes

AudioCodes ACTS24X7-M1K_S4/YR SUPPORT

£612.29

Zebra interface card. ethernet. RS232

Zebra

Zebra interface card. ethernet. RS232

£78.63

TOA TOA PC-275AB

Toa

TOA TOA PC-275AB

£133.74

Intel CYPRISER3RTM slot expander

Intel

Intel CYPRISER3RTM slot expander

£232.98

StarTech.com 2-Port Serial PCIe Card. Dual-Port PCI Express to RS232/R

StarTech.com

StarTech.com 2-Port Serial PCIe Card. Dual-Port PCI Express to RS232/R

£69.11

up to £70.48

3 offers
AudioCodes MEDIANT VE HIGH-CAPACITY SBC

AudioCodes

AudioCodes MEDIANT VE HIGH-CAPACITY SBC

£7630.19

Brainboxes ED-004 digital/analogue I/O module

Brainboxes

Brainboxes ED-004 digital/analogue I/O module

£153.13

Greatlink FTS/ Asus/Intel/Giga MBZU Parall. Kabel LP

Greatlink

Greatlink FTS/ Asus/Intel/Giga MBZU Parall. Kabel LP

£97.27

Lenovo CARDPOP IO board C 83QR

Lenovo

Lenovo CARDPOP IO board C 83QR

£44.55

StarTech.com PCIe Card with Serial and Parallel Port - PCI Express Com

StarTech.com

StarTech.com PCIe Card with Serial and Parallel Port - PCI Express Com

£40.33

up to £41.13

2 offers
OPREMA WAVE I/O MODULE LICENSE

OPREMA

OPREMA WAVE I/O MODULE LICENSE

£72.35

HP (dc7800 SFF) PCI Riser Card

HP

HP (dc7800 SFF) PCI Riser Card

£44.55

ASUS IO/KM/RF24/LCK/F

Asus

ASUS IO/KM/RF24/LCK/F

£61.84

Brainboxes Universal 3 + 1 Port RS232 Streamline interface cards/adapt

Brainboxes

Brainboxes Universal 3 + 1 Port RS232 Streamline interface cards/adapt

£244.13

Brainboxes PCI 2 port OPTO RS422/485 interface cards/adapter

Brainboxes

Brainboxes PCI 2 port OPTO RS422/485 interface cards/adapter

£264.28

ASUS PN63_FPC R1.02

Asus

ASUS PN63_FPC R1.02

£31.83

Lenovo 12G GDDR6X grphics crd

Lenovo

Lenovo 12G GDDR6X grphics crd

£1522.76

NXP MIFARE® DESFire® 4K NXP EV3 Cards (Pack of 100)

NXP

NXP MIFARE® DESFire® 4K NXP EV3 Cards (Pack of 100)

£131.71