Exabyte EXB-8505XLD *LIBRARY VERSION* 8mm SCSI 50PIN differential HVD Tape Drive This is a differential drive, HVD/High Voltage Differential, and is not compatible with a single-ended or LVD SCSI controller. Note that this is the library version but the drive can be removed as used with a standard bezel. Tested using Exabyte's Expert diagnostic software and it passed write/read test with very low error rates (see testing screen-shot). 30-day warranty. CEI: 870113-3025