An explansion board you insert into your computer so the computer can be connected to a network
StarTech.com 8 Port SATA PCIe Card - PCI Express 6Gbps SATA Expansion Adapter Card with 4 Host Controllers - SATA PCIe Controller Card - PCI-e x4 Gen 2 to SATA III - SATA HDD/SSD

StarTech.com 8 Port SATA PCIe Card - PCI Express 6Gbps SATA Expansion Adapter Card with 4 Host Controllers - SATA PCIe Controller Card - PCI-e x4 Gen 2 to SATA III - SATA HDD/SSD

StarTech.com
£98.99
StarTech.com 5-Port USB PCIe Card - 10Gbps USB 3.2 Gen 2 PCIe Card w/ 1x USB-C & 2x USB-A - 1x 2 Port IDC (Internal 5Gbps USB Header Expansion) - USB C PCI Express Controller Card - TAA

StarTech.com 5-Port USB PCIe Card - 10Gbps USB 3.2 Gen 2 PCIe Card w/ 1x USB-C & 2x USB-A - 1x 2 Port IDC (Internal 5Gbps USB Header Expansion) - USB C PCI Express Controller Card - TAA

StarTech.com
£66.99
StarTech.com 1-Port Parallel PCIe Card - PCI Express to Parallel DB25 Adapter Card - Desktop Expansion LPT Controller for Printers, Scanners & Plotters - SPP/ECP - Standard/Low Profile

StarTech.com 1-Port Parallel PCIe Card - PCI Express to Parallel DB25 Adapter Card - Desktop Expansion LPT Controller for Printers, Scanners & Plotters - SPP/ECP - Standard/Low Profile

StarTech.com
£26.99
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

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

StarTech.com
£46.99
StarTech.com 4-Port USB PCIe Card - 10Gbps USB 3.2 Gen 2 Type-A PCI Express Expansion Card with 2 Controllers - 4x USB-A - USB PCIe Add-On Adapter Card - Windows/Mac/Linux

StarTech.com 4-Port USB PCIe Card - 10Gbps USB 3.2 Gen 2 Type-A PCI Express Expansion Card with 2 Controllers - 4x USB-A - USB PCIe Add-On Adapter Card - Windows/Mac/Linux

StarTech.com
£109.99
StarTech.com 2-Port USB PCIe Card with 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x4 Host Controller Expansion Card - Add-On Adapter Card - Full/Low Profile - Windows & Linux

StarTech.com 2-Port USB PCIe Card with 10Gbps/port - USB 3.2 Gen 2 Type-A PCI Express 3.0 x4 Host Controller Expansion Card - Add-On Adapter Card - Full/Low Profile - Windows & Linux

StarTech.com
£33.99
StarTech.com 1-Port USB 3.2 Gen 2x2 PCIe Card, USB-C 20Gbps SuperSpeed PCI Express 3.0 x4 Controller Card, USB Type-C Adapter Card, Data Only, Windows/macOS/Linux, TAA

StarTech.com 1-Port USB 3.2 Gen 2x2 PCIe Card, USB-C 20Gbps SuperSpeed PCI Express 3.0 x4 Controller Card, USB Type-C Adapter Card, Data Only, Windows/macOS/Linux, TAA

StarTech.com
£55.99
StarTech.com 8-Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Card, 16C1050 UART, Multiport Serial DB9 Controller/Expansion Card, 15kV ESD Protection, Windows Only - TAA

StarTech.com 8-Port PCI Express RS232 Serial Adapter Card, PCIe RS232 Serial Card, 16C1050 UART, Multiport Serial DB9 Controller/Expansion Card, 15kV ESD Protection, Windows Only - TAA

StarTech.com
£182.99
StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card - USB 3.2 Gen 2 PCI Express Type C/A Host Controller Card Adapter - USB 3.2 Gen 2 PCIe Expansion Add-On Card - Windows, macOS, Linux - TAA

StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card - USB 3.2 Gen 2 PCI Express Type C/A Host Controller Card Adapter - USB 3.2 Gen 2 PCIe Expansion Add-On Card - Windows, macOS, Linux - TAA

StarTech.com
£48.99
StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows/Linux - TAA

StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows/Linux - TAA

StarTech.com
£100.99
StarTech.com 2-Port USB 3.2 Gen 2 PCIe Card, USB-C 10Gbps SuperSpeed PCI Express 3.0 x4 Controller Card, USB Type-C Adapter Card, Data Only, Windows/macOS/Linux, TAA

StarTech.com 2-Port USB 3.2 Gen 2 PCIe Card, USB-C 10Gbps SuperSpeed PCI Express 3.0 x4 Controller Card, USB Type-C Adapter Card, Data Only, Windows/macOS/Linux, TAA

StarTech.com
£53.99
StarTech.com 2-Port PCI Express FireWire Card - PCIe FireWire 1394a Adapter

StarTech.com 2-Port PCI Express FireWire Card - PCIe FireWire 1394a Adapter

StarTech.com
£30.99