RS-232 to RS-485/RS-422 Bidirectional Converters
By ATEN

The IC-485S is hardware solutions to the problem of converting signals between two standards. Data transfer can take place at up to 1200m (4000), over four or two wire cable for full or half duplex, respectively. The converters can handle any RS-485/RS-422 device allowing it to function as a short haul modem or interface converter. ... 

RJ45/DB25 Male Adapter - DTE (for modems)
By Digi International

Number of Connectors: 2 - Product Type: 25-pin D-Sub (DB-25) Male to RJ-45 Female - Connector Details: 1 x 25-pin DB-25 Male - 1 x RJ-45 Female - Packaged Quantity: 4 - - ... 

Laptop Hard Drive Adapter - IDC44F/IDC40M
By Cables To Go

With the Laptop Hard Drive Adapter from Cables To Go, you can easily connect your 2.5in notebook IDE hard drive to a 40-pin IDE cable for installation in a desktop or tower PC. Each adapter features 44-pin female to 40-pin male connectors, and a power feed. ...