With the MK3259GSXP Toshiba supports the demand for high capacity extremely compact mobile storage. With a profile of only 9.5mm it is ideal for integration into premium notebooks, high-end PCs & portable external hard disk drives. The 2.5-inch HDDs operation speed of 5, 400RPM allows a fast internal transfer rate of up to 1, 363 Mb/s & provides a market-leading areal density of 541.4 Gbit/in. This extends its possible uses from high end personal computing & data storage into the set-top box & Personal Video Recorder segments. The MK3259GSXP series features an Advanced Sector Format Technology, which uses 4K byte-per-sector formatting & enhanced error-correcting code functions to provide maximum error detection & more efficient use of the storage surface area. Features Formatted capacity 320GB Form factor 2.5" Interface type SATA-II Shock detection Shock sensor circuit S.M.A.R.T. The SMART command set is supported. Physical parameters Number of platters 1 Number of cylinders 187, 231 Number of heads 2 Bytes/sector (Host) 512 Bytes/sector (Disk) 4096 k Byte Access times Average seek time 12 ms Maximum seek time 22 ms Track-to-track seek time 2 ms Transfer rates Internal From 584 MBit/s to 1195 MBit/s SATA (Host) max. 3.0 Gbit/s Rotational speed 5, 400 rpm Buffer size 8, 192 k Byte Cache Read-ahead cache, Write cache Reliability specifications Non-recoverable error rate 1 error per 10^14 seeks Preventive maintenance No preventive maintenance is required Power consumption Start (Maximum) 4.5 W Seek (Average) 1.85 W Read (Average) 1.5 W Write (Average) 1.5 W Low-power idle (Average) 0.55 W Sleep (Average) 0.15 W St&-by (Average) 0.18 W Power supply Supply voltage +5 V (+/- 5 %) Allowable noise/ripple Max. 100 m V Mechanical specifications Drive width 69.85 mm Drive height 9.5 mm Drive depth 100 mm Drive weight 0.097kg 0.101kg 0.101kg 0.101kg Mounting instructions Four screws should be tightened equally with 0.39 Nm torque. The depth should be 3.0 mm minimum & 3.5 mm maximum Temperature Operating From 5 °C to 55 °C Non-operating From -40 °C to 60 °C Shipping From -40 °C to 70 °C Operating From 8 % to 90 % Non-operating From 8 % to 90 % Shipping From 5 % to 90 % Vibration Operating (Maximum) 1 G, with 5
- 500 Hz Non-operating (Maximum) 5 G, with 15
- 500 Hz Shock Operating (Maximum) 400 G, with 2 ms half sine wave Non-operating (Maximum) 900 G, with 1 ms half sine wave Operating From -300 m to 3, 000 m Non-operating From -300 m to 12, 000 m Acoustic noise Idle mode (Disk spinning) Max. 19 d B Random seek Max. 20 d B