StarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card, TAA (PEX2S1050)

Sintech 9Pin USB Header Male to Dual Male Port Multiplier HUB with SATA Power Cable

Insignia - 2-Port USB 3.0 PCI Express Interface Card - Silver

Mini PCI-E to Dual 5 Pin 2 Prots USB Adapter,Mini PCI Express to 5 Pin 2 Port Female USB2.0 Converter Card Expansion Card for USB Wireless Mouse Receiver,USB Bluetooth Adapter USB WiFi Adapter Etc.

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 (PEX4S953LP)

Wiegand Converter, WG26 / 34 to RS232 Serial Port, bidirectional Mutual Conversion/ASCII Text Input and Output (male)

StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows & Linux , TAA (PEX4S953)

BROADCOM 05-50038-00 RAID Controller Cache Data Protection Module with LSI CacheVault Power 02 Kit - Green

FebSmart PCIE X4 to 4X Channels 8-Ports Superspeed 5Gbps USB 3.0 Expansion Card, 4X Dedicated USB 3.0 5Gbps Channels 20Gbps Total Bandwidth, Built in FebSmart Self-Powered Technology (FS-4C-U8-Pro)