Overview: Adapter allows your 2.5" IDE laptop hard drive fit & run in a 3.5" bay in a desktop system After it's detected, you can used your 2.5 IDE laptop hard drive as a regular 3.5" IDE drive Female: Laptop hard drive 44-pin connector Male: Desktop IDE Hard Drive 40-pin connector Specification: Weight Approx:13.7g Size Approx:8.5 x 3.2 x 0.8