Seagate ST94019A Momentus 4200 Product Manual - Page 13
Drive specifications - ata
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2.0 Drive specifications Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate ST94019A, ST93015A, and ST92014A model drives. 2.1 Specification summary The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Table 1: Specifications Drive specification Formatted Gbytes (512 bytes/sector) Guaranteed sectors Bytes per sector Physical read/write heads Discs Cache (Mbytes) Recording density, BPI (bits/inch max) Track density. TPI (tracks/inch max) Areal density (Bbits/inch2 max) Spindle speed (RPM) Internal data transfer rate OD (Mbytes/sec max) Sustained data transfer rate OD (Mbytes/sec) I/O data-transfer rate (Mbytes/sec max) ATA data-transfer modes supported Height Width Length Weight (typical) Average latency (msec) Power-on to ready (sec typical) Standby to ready (sec typical) Startup current 5V (peak) Track-to-track seek time (msec typical) Average seek time (msec typical) Average seek, read (msec typical) ST94019A ST93015A ST92014A 40 30 20 78,140,160 58,605,120 39,070,080 512 2 2 1 1 2 642,000 577,000 642,000 100,780 65 58 65 4,200-class performance (spin speed actually 5,400 RPM) 48.25 46.05 48.25 31.0 100 PIO modes 0-4; Multiword DMA modes 0-2; Ultra DMA modes 0-5 9.5 +/-0.2 mm (0.374 +/-.0078 inches) 69.85 +/-0.25 mm (2.75 +/-0.0098 inches) 100.2 +/-0.25 mm (3.945 +/-0.0098 inches) 99 grams (0.218 lb) 5.6 3.9 2.5 sec 1.2 amps 1.5 (read), 2.0 (write) 12.0 12.0 Momentus 42 Product Manual, Rev. A 3