I/O Cards & Adaptors
2,440 productsUpdated March 2026
All (2,440)Audio Cards & Adaptors(193)Graphics Cards & Video Adaptors(785)TV Tuner Cards & Adaptors(108)Riser Cards(760)Computer Interface Cards & Adapters(539)
Asus
ASUS PRIME RTX 5060 Ti 8GB OC Graphics Card
£420.03
up to £495.99
2 offers
StarTech.com
StarTech.com 4 port PCI 1394a FireWire Adapter Card - 3 External 1 Internal
£31.98
up to £34.54
2 offers
StarTech.com
StarTech.com 2-Port Serial PCIe Card, Dual-Port PCI Express to RS232/RS422/RS485 (DB9) Serial Card, Low-Profile Brackets Incl., 16C1050 UART, Windows/Linux, TAA Compliant - Level-4 ESD Protection
£81.99
up to £85.63
2 offers
MSI
MSI VENTUS GeForce RTX 3060 3X 12G OC NVIDIA 12 GB GDDR6
£282.48
up to £285.13
2 offers
StarTech.com
StarTech.com USB 3.0 to HDMI and VGA Adapter - 4K/1080p USB Type-A Dual Monitor Multiport Adapter Converter - External Video Graphics Card for Multiple Screens - Multi Display USB Adapter
£69.97
up to £69.99
2 offers
TVCables
SCART to Two RCA & SVHS Cable
£2.62
2 offers
StarTech.com
StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16950 UART - Expansion Card - Windows & Linux
£52.91
up to £54.98
2 offers
StarTech.com
StarTech.com DisplayPort to VGA Adapter - Active DP to VGA Converter - 1080p Video - DP/DP++ Source to VGA Monitor Cable Adapter - DP to VGA Adapter Dongle Digital to Analog - DP 1.2 to VGA
£23.78
up to £24.98
2 offers
StarTech.com
StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
£91.99
up to £94.51
2 offers
Cabledepot
2-Port USB 3.0 Express Card 34mm
£5.50
2 offers
StarTech.com
StarTech.com 8-Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Card, 16C1050 UART, Low Profile Serial DB9 Controller/Expansion Card, 15kV ESD Protection, Windows Only - TAA
£181.99
up to £188.71
2 offers
HPE
HPE GRPHICS MODULE. PCI SYNC. 1
£72.26
up to £74.79
2 offers
StarTech.com
StarTech.com 6in SATA Power to 8 Pin PCI Express Video Card Power Cable Adapter
£13.98
up to £15.63
2 offers
Cabledepot
15cm 6-Pin Pci Express 2x Molex Rounded Pin
£1.10
2 offers
Cabledepot
Serial ATA to IDE Adapter
£6.36
2 offers
StarTech.com
StarTech.com PCIe Card with Serial and Parallel Port - PCI Express Combo Adapter Card with 1x DB25 Parallel Port & 1x RS232 Serial Port - Expansion/Controller Card - PCIe Printer Card
£49.91
up to £50.98
2 offers
Inno3d
INNO3D GeForce RTX 5090 X3 OC NVIDIA 32 GB GDDR7
£4134.43
up to £4211.15
2 offers
StarTech.com
StarTech.com 7.1 USB Audio Adapter External Sound Card with SPDIF Digital Audio
£43.80
up to £46.98
2 offers
Longshine
Longshine LCS-6321M interface cards/adapter Internal Serial
£47.75
up to £49.87
2 offers
Cabledepot
External SATA PCI-e Card 2-Port
£6.86
2 offers
Intel
Intel AXXP3SWX08080 interface cards/adapter Internal PCIe
£392.14
2 offers
Asus
ASUS TUF GAMING RX 7900 XTX OC 24GB Graphics Card
£956.56
up to £985.58
2 offers
StarTech.com
StarTech.com 4-Port Serial PCIe Card, Quad-Port PCI Express to RS232/RS422/RS485 (DB9) Serial Card, Low-Profile Bracket Incl., 16C1050 UART, Windows/Linux, TAA Compliant - Level-4 ESD Protection
£164.99
up to £169.81
2 offers
StarTech.com
StarTech.com 4 Port PCI SuperSpeed USB 3.0 Adapter Card with SATA / SP4 Power
£72.36
up to £72.99
2 offers