DfS can help you recover up to 80% of Seagate HDD data recovery cases (with the aditional usage of data recovery software). Practically all common firmware issues (that not require component replacement) can be repaired with proper use of DfS.If the drive has other issue DfS will help you recognise it and through the head diagnostics feature the technitian can decide if he will try to recover the data with some software or imager or if he should outsource the drive to a more advanced laboratory. FW-FXR and DfS are the only complete kits on the market providing not only the USB adapter but also all needed accessories (HDA connector masks and screwdrivers) and dedicated software (works on Windows XP, Vista, 7) and step by step instructions in order to complete the repair of your HDD. Considering that Seagate HDDs give a great number of firmware issues practically half of Seagate data recovery cases can be recovered directly with proper use of the toolkits. Features:Check Heads Condition. Check Bad/Reallocated Sectors per Head Record and View Boot-up Seagate Terminal Messages Fix 7200.11 Busy Bug Correct Zero Capacity Error Get Drives-Firmware-Temperature Information Test Read Speed per Head The Kits include: 1 X DfS and 1 X FW-FXR USB adapters which connect HDD with the computer (color might be different than the one in the photo). 2 X HDA connector masks (100% made out of recycled matterial from laptop LCD panels) 2 X mini DVDs with drivers, software and instructions for Windows XP (sugested), Windows Vista, Windows 7 2 X screwdrivers 2 X container boxes.