The StarTech.com USB-to-Parallel (DB25) Interface Converter Cable allows PCs that support the USB specification to connect to any standard parallel device. Use the convenience of USB and cut costs by keeping your parallel devices.
Add a parallel port and two RS-232 serial ports to your PC through a PCI expansion slot
Add digital optical surround sound to your computer through PCIe
Add front or rear panel USB 3.0 ports to your computer case using USB 3.0 motherboard-style headers
StarTech.com 3 Port PCI Low Profile High Speed USB 2.0 Adapter Card - USB adapter - PCI low profile - USB, USB 2.0 - 3 ports
The 2-port PCI-Express Interface Card (IFC-PCIE2U3S2 ) lets you enjoy the superior performance of high-speed USB 3.0 devices. USB 3.0 offers transfer speeds of up to 5 Gbps for much faster transfer and backups and better performance from connected device.
Add four USB 2.0 Ports to the back of your computer
StarTech.com 8 Port USB to RS232 Serial DB9 Adapter Hub - Serial adapter - USB - RS-232 x 8
D-Link DUB-1310 - Network adapter - PCIe - USB 3.0 x 2 - for DUB 1340
Add two USB 3.0 ports to your desktop computer through a PCI Express slot
The ECUSB3S254F 2-Port Flush Mount USB 3.0 ExpressCard Adapter uses a unique form factor design that allows it to sit fully in a standard 54mm laptop ExpressCard slot without sticking out.
Add an additional six external and one internal high speed USB 2.0 ports to any PCIe compatible PC
Add four USB 3.0 ports – three external ports and one internal port – to your computer
StarTech.com 3 Port PCI Express 2.0 SATA III 6 Gbps RAID Controller Card w/ mSATA Slot and HyperDuo SSD Tiering - Storage controller (RAID) - 4 Channel - SATA 6Gb/s low profile - 6 GBps - RAID 0, 1, 10, JBOD - PCIe 2.0 x2
SIIG Dual Display - External video adapter - DisplayLink DL-3900 - USB 3.0 - DVI, HDMI - white
SIIG’s DP USB 3.0 4-Port PCIe i/e is a high performance adapter card designed to instantly add four additional USB 3.0 ports (1 internal and 3 external) to your PCIe-enabled desktop computer.
StarTech.com 2 Port SuperSpeed Mini PCI Express USB 3.0 Adapter Card w/ Bracket Kit - USB adapter - PCIe Mini Card low profile - USB 3.0 x 2 - for P/N: USB3S2SAT3CB
StarTech.com 7 Port PCI USB Card Adapter - USB adapter - PCI - USB, USB 2.0 - 7 ports