TESTED. WORKING PERFECT . SEE PHOTO
 
S T 2 5 1 - 1 SEAGATE NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/HH Cylinders 820| | | Capacity form/unform 43/ 51 MB Heads 6| | | Seek time / track 28.0/ 8.0 ms Sector/track 17| | | Controller MFM / ST412 Precompensation 65535 Cache/Buffer KB Landing Zone 910 Data transfer rate 0.625 MB/S int Bytes/Sector 512 0.625 MB/S ext Recording method MFM operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 10 45 | -40 60 Power: sleep W Humidity % 8 80 | 5 90 standby W Altitude km -0.305 3.048| -0.305 9.144 idle W Shock g 10 | 40 seek W Rotation RPM 3600 read/write 12.0 W Acoustic dBA spin-up W ECC Bit MTBF h 100000 Warranty Month Lift/Lock/Park YES Certificates CSA,FCC,TUV,UL478,VDE