Acer Aspire E1-531 Acer Aspire E1-531 and E1-571 Notebook Service Guide - Page 29

Hard Disk Drive Interface (continued) Item Specification Vendor & Model Name WD7500BPVT22HXZT1 MK7559GSXP HTS547575A9 E384 ST9750423AS WD2500BPVT22ZEST0 Capacity (GB) 750GB 750GB 250GB Bytes per sector 4096 4096 4096 4 4 1 Data heads 4 4 Drive Format 2 2 1 Disks 2 2 Spindle speed (RPM) 5400RPM Performance Specifications Buffer size 8MB 16MB 8MB Interface SATA Fast data transfer rate (Mbits / sec, max) 3.0Gbits/s 3.0Gbits/s 3.0Gbits/s Media data transfer rate (Mbytes/sec max) 97Mbytes/s 1363.1Mbits/s 996Mbits/s 1130Mbits/s 108Mbytes/s DC Power Requirements Voltage tolerance 5V WD3200BPVT22ZEST0 320GB 4096 2 1 8MB 3.0Gbits/s 108Mbytes/s Hardware Specifications and Configurations 1-22