Amazon.com: BUELEC DB9 Female and Male Connector in One Breakout Board,RS232/RS485/CAN/RS422 with DB9 Connector to Terminal Board Signal Module(2pcsDB9 Female/Male) : Electronics
Monoprice Gold Plated Rca Male To F-type Female Adaptor : Target
Amazon.com: DC Power Cable 12V 5A Plugs Male Female Connectors for CCTV Security Camera Pigtail Power Adapter Connectors (5.5mm x 2.1mm, 10 Pairs) : Electronics
Jameco Challenges: Male or Female Connectors
12V DC connectors 5.5 x 2.1mm DC Power Pigtail Cable Male Female Connector for CCTV Security Camera Power Adapter Length 25CM - AliExpress
DC female male jack plug 5.5X 2.1mm 2.5mm 6.5mm 3.5mm adapter Connector laptop | eBay
Waterproof DC Male Female Connector
2.1mm Male/Female Plug with LED Strip Connector
StarTech 10' DB9 RS232 Serial Female to Male Null Modem SCNM9FM
32A Male and Female Connector, 4 Pin, IP44 - Peaco Support
Amazon.com: VCE F-Type Female to RCA Male Coaxial Cable Audio Adapter Gold Plated Connector, 2-Pack : Electronics
What is the difference between an RS232 Female and Male connector?
Amazon.com: YOTENKO DIN 6 Pin Male Plug Solder Connector + Female Adapter Recessed Socket Panel Mount AV Adapter Audio Socket for Digital Audio Devices Set of 2 : Electronics