Losing important information can be disastrous to any organization so it is imperative that you back up your data.IBM realizes this and offers a reliable tape back up solution - the 8 mm 20/40 GB internal tape drive. This drive is compatible with Exabyte 170m AME tape cartridges and is backward compatible to previous Exabyte formats. It has a backup rate of 180 MB per minute or 360 MB per minute with hardware data compression and a capacity of 20 GB or 40 GB with compression.