Amazon.com: StarTech.com USB to Serial Adapter - 1 port - USB Powered - FTDI USB UART Chip - DB9 (9-pin) - USB to RS232 Adapter (ICUSB2321F) : Electronics
Arduino Mega 2560 Rev3 — Arduino Official Store
I/O Ports and Devices | Understanding I/O Ports | Pearson IT Certification
Cable Specification and Pin Assignment
StarTech.com 8 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2328I)
I/O Ports and Devices | Understanding I/O Ports | Pearson IT Certification
S100 Computers - Serial IO Board
Amazon.com: Jienk Solderless RS232 D-SUB DB37 Male Serial Adapter, 37 Pin Port Terminal Solderfree Breakout Board Connector with Case Long Bolts Tail Pipe : Electronics
Appendix A. Technical Specifications
I/O Ports and Devices | Understanding I/O Ports | Pearson IT Certification
13 Pin DIN connector for Kenwood Icom Yaesu ACC cable / port | eBay
Amazon.com: IO Crest 3.5 Inch Bay 4 Port Hub USB 3.0 with Fast Charging Port, 19 Pin USB Header and USB A Connector SY-HUB20134,Black : Electronics
RS232 vs TTL: Beginner Guide to Serial Communication - Latest Open Tech From Seeed
Amazon.com: Exsys 1311 -2 to 1x Serial RS-232 1.8 m USB 2.0 Cable with 9 Pin Connector LED Display Black : Electronics
Amazon.com: 10pack DB25 Male & Female connectors Gold Plated D-SUB 25PIN Serial Adapter RS232 Serial Port 25-pin D-sub Coupler, Suitable for use I/O and DAQ Equipment, Computer(5PCS Male+ 5PCS Female) : Electronics
Amazon.com: USB to TTL Serial Cable : Electronics
Serial Call and Response (handshaking) | Arduino Documentation | Arduino Documentation
L1: Intro to Serial - Physical Computing
I/O Ports and Connectors: Dell PowerEdge 8450 Systems User's Guide
Serial Port I/O Expander
S100 Computers - Serial IO Board
6.4 Serial Ports (J8) - User Manuals
