Detail overview
  Seagate - Momentus 320gb 5400rpm 2.5inch 8mb Buffer Sata 3gbps Internal Notebook Drive (st320lt020). 
 Specifications: 
model Number : St320lt020 
  Interface : Sata 3gb/s 
   Cache : 8mb 
   Capacity : 320gb 
   Areal Density (avg) : 425gb/in2 
   Guaranteed Sectors : 625,142,448 
 Physical Dimensions: 
   Height : 7.0mm (0.276 In) 
   Width : 70.10mm (2.76 In) 
   Length : 100.55mm (3.959 In) 
   Weight : (typical) 92g (.203 Lb) 
 Performance:  
   Spin Speed (rpm) : 5400 Rpm 
   Average Latency : 5.6ms 
   Random Read Seek Time : 11ms 
   I/o Data Transfer Rate : 300mb/s 
   Unrecoverable Read Errors : 1 In 1014 
 Key Features And Benefits:  
   Thin 7mm Profile For Slim Laptop Designs 
   Seagate Smartalign Technology Provides A Transition To 4k Sectors Without The Need For Software Utilities. 
   320gb, 250gb And 160gb Capacity Options For Fully Functional Computing 
   16mb Cache, 7200-rpm And 5400-rpm Spin Speed Delivers Comprehensive Performance. 
 Best-fit Applications :  
   Entry-level To High-performance Laptops 
   Netbooks 
   Ultraportables 
   Slim Consumer Electronics Devices