Key Features and Benefits

• Broad range of capacities, from 200 GB to 750 GB, the highest in the INDUSTRY
• Available interfaces: SATA 3Gb/s, SATA 1.5Gb/s or Parallel ATA/100
• Perpendicular recording TECHNOLOGY for maximum drive capacity and reliability
• 8- and 16-MB cache buffer options
• Ultra-fast performance
• Superb reliability
• Whisper-quiet operation
• Enhanced G-Force Protection against handling damage
• 78 MB/s maximum sustained data transfer rate
• Clean Sweep calibration and Directed Offline scan diagnostics
• RoHS (restriction of hazardous substances) compliant
• 5-year warranty

Applications

• Gaming PCs
• Workstations
• High-end PCs
• Desktop RAID
• Mainstream PCs
• xATA servers
• USB/FireWire/eSATA external storage

• Drive specification	ST3300820A	ST3300620A	ST3250820A
  Formatted Gbytes (512 bytes/SECTOR)*	300		250
  Guaranteed SECTORS	586,072,368		488397168
  Bytes per SECTOR	512
  Default SECTORS per track	63
  Default read/write heads	16
  Default cylinders	16,383
  Internal data transfer rate (Mbytes/sec max)	95
  I/O data transfer rate (Mbytes/sec max)	150
  ATA data-transfer modes supported	PIO modes 0–4Multiword DMA modes 0–2Ultra DMA modes 0–6
  SATA data-transfer modes supported	1.5 Gbits/sec
  Cache buffer	8 Mbytes	16 Mbytes	8 Mbytes
  Height (max)	26.11 mm (1.028 inches)
  Width (max)	101.85 mm (4.010 inches)
  Length (max)	146.99 mm (5.787 inches)
  Weight (max) grams / lb.	635 / 1.39
  Average latency (msec)	4.16
  Power-on to ready (typical)	10 sec
  Standby to ready (typical)	10 sec
  Track-to-track seek time (msec typical)	0.8 (read), 1.0 (write)
  Average seek, read (msec typical)	8.0
  Average seek, write (msec typical)	9.0
  Startup current (typical) 12V (peak)	2.8 amps
  Seek power (typical) watts	9.9
  Operating power (typical) watts	9.2
  Idle mode (typical) watts	7.2
  Standby mode (typical) watts	1.2
  Sleep mode	1.2
  Voltage tolerance (including noise)	5V ± 5% 12V ± 10%
  Ambient temperature	0° to 60°C (op.) –40° to 70°C (nonop.)

  Temperature gradient (°C per hour max)	20°C (operating) 30°C (nonoperating)
  Relative humidity	5% to 90% (operating) 5% to 95% (nonoperating)
  Relative humidity gradient	30% per hour max
  Wet bulb temperature(°C max)	37.7 (operating) 40.0 (nonoperating)
  Altitude, operating	–60.96 m to 3,048 m (–200 ft to 10,000+ ft)
  Altitude, nonoperating (meters below mean sea level, max)	–60.96 m to 12,192 m (–200 ft to 40,000+ ft)
  Shock, operating (max at 2 msec)	63 Gs
  Shock, nonoperating (max at 2 msec)	300 Gs
  Vibration, operating	5–22 Hz: Limited displacement 23–350 Hz: 0.5 G acceleration
  Vibration, nonoperating	5–22 Hz: Limited displacement 23–350 Hz: 5 Gs acceleration
  Drive acoustics, sound power (bels)
  Idle**	2.8 (typical) 3.4 (max)
  Performance seek	3.7 (typical)3.9 (max)
  Nonrecoverable read errors	1 per 1014 bits read
  Annualized Failure Rate (AFR)	0.34%
  Service life	5 Years
  Contact start-stop cycles(25°C, 50% relative humidity)	50,000
  Supports Hotplug operation per SATA II specification	Yes

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