Kingston SSD A400 120GB 240GB 480GB 960GB SATA 3.0 III 2.5” Solid State Drive Data Transfer(ATTO): 120GB-up to 500MB/s Read and 320MB/s Write 240GB-up to 500MB/s Read and 350MB/s Write 480GB-up to 500MB/s Read and 450MB/s Write Totally Bytes Written(TBW): 120GB:40TB 240GB:80TB 480GB:160TB 960GB:320TB About real capacity 120GB = approximately 108GB-114GB 240GB = approximately 216GB-228GB 480GB = approximately 432GB-456GB 960GB = approximately 864GB-912GB It is calculation difference between manufacturer and your PC. Your PC says 1GB = 1.073741824 Billion bytes where Market Defines 1 GB = 1.00 Billion bytes. Please Google “ssd real capacity” to get more information.The person pursuit of perfect is not recommended to buy. Form factor :2.5".
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