Hi: Sorry for the confusing prior posts, here is the chart of Compaq Portable III drives in a legible form Portable III Hard Drives Min Compaq Conner Size Type Interleave Integrated ROM Spare Part No Model No 20MB 2 1:01 Y K Not known 20MB 2 3:01 Y K 107357-001 40MB 17 3:01 Y K 110358-001 40MB 224 1:01 Y R.2 Not known 40MB 43 1:01 Y F 114106-001 84MB 27 1:01 Y K Not known 100MB 45 1:01 Y K 142365-0011 120MB 45 1:01 Y K 161832-0012 Extracted from http://oldcomputers.net/compaqiii.pdf ?and other sources Any help in filling in the Conner Model Number column would be appreciated. Tom Gardner