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Amazon.com: Eboxer 2 Port PCI Express RS232 Serial Adapter, PCIe to RS232 Dual Serial Port Host Controller Expansion Card for Laptop PC, 2.5Gb/s Full Duplex Channel, Plug and Play : Electronics
Amazon.com: Letotech Cross Wired USB Serial Cable DB9 CP2102 ZT232 USB RS232 to DB9 Null Modem Cable PC Control TV Cable (Standard Pinout) : Electronics
Amazon.com: Pmod RS232: Serial Converter/Standard Interface : Electronics
Amazon.com: RS485 Converter Adapter, RS-232 to 485/422 Converter Adapter Cascadable 16-32 Devices Converter for Attendance Machines, Compatible with RS-232, RS-485, RS-422 Standards : Electronics
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
Amazon.com: StarTech.com 2-Port PCI Express Serial Interface Card, Dual Port PCIe to RS232 (DB9) Serial Card, 16C1050 UART, Standard/Low Profile Brackets, COM Retention, for Windows/Linux (21050-PC-SERIAL-CARD) : Electronics
Amazon.com: USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 10, 8, 7 and Mac Systems - Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More : Electronics
Amazon.com: UTEK UT-277MM-ST RS-232/422/485 to Optical Fiber Media Converters : Electronics
Amazon.com: DTech DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices : Electronics
Amazon.com: RS232 to 232 Converter, Isolator Compatibility Asynchronous Duplex for IT Industry for PC : Electronics
Amazon.com: StarTech.com 2-Port PCI RS232 Serial Adapter Card - PCI Serial Port Expansion Controller Card - PCI to Dual Serial DB9 Card - Standard (Installed) & Low Profile Brackets - Windows/Linux (PCI2S5502) :
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Amazon.com: DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication (1.5 Feet, Black) : Electronics
Amazon.com: StarTech.com PCI Express Serial Card - 16 DB9 RS232 Ports - Low + Full Profile - Multiport Serial Adapter - PCIe Serial Card (PEX16S550LP) : Electronics
Amazon.com: DTech DB9 RS232 Serial Cable Male to Female Extension Null Modem Cord Cross TX RX line for Data Communication (10 Feet, Black) : Electronics
Amazon.com: StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF) : Electronics
Amazon.com: JUXINICE Copper Wire Db9 Female to Female Cable 3ft Double Shielded with foil & Metal Braided，Gold Plated D-SUB 9 Pin RS232/RS485 Extension Serial Cable RS485 Cable-Black (Female to Female, 3.3FT 1M) :
Amazon.com: StarTech.com PCI Express Serial Card, PCIe to RS232 (DB9) Serial Interface Card, PC Serial Card, 16C1050 UART, Standard and Low Profile Brackets, COM Retention, Windows/Linux (11050-PC-SERIAL-CARD) : Electronics
Amazon.com: PL2303TA USB RS232 to DB9 Cross Wired Rollover Null Modem Cable (Standard pinout: 2-RXD, 3-TXD, 5-GND, 7-RTS 8-CTS) : Electronics
Amazon.com: DTech DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices : Electronics
Amazon.com: RS232 to 232 Converter, Isolator Compatibility Asynchronous Duplex for IT Industry for PC : Electronics
