值得买推荐：
Seagate Momentus XT 混合式硬盘，拥有HDD的大容量，但同时具备SSD的快速，原价349.99美元，现在对折为178.99美元。
7200转的转速已经不错了，配合32mb的SSD，可将整体硬盘读写速度提高为传统7200转HDD的1.8倍。
Product Features
•750 GB 7200 RPM SSD Hybrid Drive
•Solid state hybrid drive delivers SSD-like performance with hard drive capacity options
•Adaptive Memory technology customizes performance by aligning to user needs for overall improved system response
•80 percent faster performance than traditional 7200-RPM drives in PCMark Vantage benchmark scores
•Low heat and vibration – quiet operation without giving up storage capacity and affordability
Cases and Expandability
•Size (LWH): 3.95 inches, 2.75 inches, 0.37 inches
•Weight: 4 ounces