CC437 - DB9 Female to RJ12 Female Serial/Terminal Modular Adaptor
StarTech.com USB to RS232 DB9 Serial Adapter Cable - M/M | Camcor
3ft (0.9m) USB 2.0 USB-C to DB9 Serial RS232 Adapter Cable | Adapters and Couplers | Audio Video
Generic to DB9 Adapter Cable – Grid Connect
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
RJ45 serial adapter | DB9 to RJ45
Tripp Lite 6ft 2-Port USB to DB9/ RS 232 Serial Adapter FTDI, w/ COM Retention - serial adapter - USB - RS-232 x 2 - U209-006-2 - USB Adapters - CDW.com