SP240GBSS3S55S25

価格の割にはいいかも。

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CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

           Sequential Read :   441.743 MB/s
          Sequential Write :   444.755 MB/s
         Random Read 512KB :   296.504 MB/s
        Random Write 512KB :   408.040 MB/s
    Random Read 4KB (QD=1) :    17.278 MB/s [  4218.2 IOPS]
   Random Write 4KB (QD=1) :    46.055 MB/s [ 11244.0 IOPS]
   Random Read 4KB (QD=32) :   147.400 MB/s [ 35986.3 IOPS]
  Random Write 4KB (QD=32) :   231.169 MB/s [ 56437.7 IOPS]

  Test : 50 MB [C: 11.2% (25.1/223.2 GB)] (x1)
  Date : 2014/11/08 10:44:43
    OS : Windows 8.1 Pro [6.3 Build 9600] (x64)