Appearance: UsedFunctionality: Not WorkingDescription:============As pictured, a SeagateST-225 20MB MFM Hard Drive. Includes just the bare drive. Links to specs andjumpers are provided below. Drive spins and is recognized by the controller,but does not complete low-level format. Sold as-is.Warranty andReturns:=====================This product isbeing sold AS-IS without any warranty. Returns are not accepted. To ensure thatthis is the right product for your needs, we’re happy to answer any questions. Shipping:=========- Local pickup isalso available at no cost.- Most orders placedbefore 9am will ship the same day.Stock#:5044ftp://ftp.seagate.com/techsuppt/mfm/st225.txt ST - 225 UNFORMATTED CAPACITY (MB)________________25.6 FORMATTED CAPACITY (17 SECTORS) (MB)_____21.4 ACTUATOR TYPE____________________________STEPPER TRACKS___________________________________2,460 CYLINDERS________________________________615 HEADS____________________________________4 DISCS____________________________________2 MEDIA TYPE_______________________________OXIDE RECORDING METHOD _________________________MFM TRANSFER RATE (mbits/sec)________________5.0 SPINDLE SPEED (RPM)______________________3,600 AVERAGE LATENCY (mSEC)___________________8.3 INTERFACE________________________________ST412 SECTORS PER DRIVE ________________________41,820 TPI (TRACKS PER INCH)____________________588 BPI (BITS PER INCH)______________________9,827 AVERAGE ACCESS (ms)______________________65 SINGLE TRACK SEEK (ms)___________________20 MAX FULL SEEK (ms)_______________________150 MTBF (power-on hours)____________________100,000 POWER REQUIREMENTS: +12V START-UP (amps)_2.4 +12V TYPICAL (amps)__0.9 +5V TYPICAL (amps)___0.8 TYPICAL (watts) ______14.8 MAXIMUM (watts)______33 BUFFERED STEP PULSE RATE (micro sec)_____5-200 WRITE PRECOMP (cyl)______________________300 REDUCED WRITE CURRENT (cyl)______________N/A (616) LANDING ZONE(cyl)________________________670 IBM AT DRIVE TYPE________________________2
