Amazon.com: KENTEK 6 Feet FT DB25 Null Modem Serial Printer Cable Cord Connector 28 AWG RS-232 Crossover 25 Pin Male to Female M/F Molded D-Sub Port for PC Mac Linux Printer Data
8ft DB25 Null Modem Serial Cable M/F 28AWG RS232 Crossover 25Pin PC Printer Data | eBay
How to identify a crossover cable - Quora
Make Sure the Link Light (LED) on the Printer is Lit and the Network Cable is Connected Properly
Connect Two Computers using a Crossover Cable
Difference Between Straight Through and Crossover Cables - IP With Ease
Crossover Cable and Straight Through Cable - Snabay Networking