Seagate ST3750330NS Barracuda ES.2 SATA Product Manual - Page 15

2.5 Physical characteristics Maximum height Maximum width Maximum length Max weight ST31000340NS ST3750330NS ST3500320NS ST3250310NS Cache buffer 26.1 mm (1.028 inches) 101.6 mm (4.000 +/- 0.010 inches) 146.99 mm (5.787 inches) 677 grams (1.493 lbs) 633 grams (1.396 lbs) 543 grams (1.199 lbs) 518 grams (1.141 lbs) 32 Mbytes (32,768 kbytes) 2.6 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions. • Average seek time is a true statistical random average of at least 5,000 measurements of seeks between random tracks, less overhead. *Typical seek times (msec) Track-to-track Average Average latency: Read 0.8 8.5 4.16 Write 1.0 9.5 *Measured in performance mode. Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted values. However, due to the manner in which these drives are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that vary from these specifications. 2.7 Start/stop times Power-on to Ready (sec) Standby to Ready (sec) Ready to spindle stop (sec) ST31000340NS 20 (max) 10 (max) 20 (max) ST3750330NS 9 (max) ST3500320NS, ST3250310NS 8 (max) Barracuda ES.2 Serial ATA Product Manual, Rev. G 9