CrystalDiskMark: Lenovo X220, Ultrabase & USB 3.0 Hard Drive Benchmark

 Lenovo X220 and internal Seagate 320GB ST320LT007.

 

Lenovo X220 and Seagate 1TB 2.5" Expansion connected via USB 3.0.



Lenovo X220 and Western Digital 750GB WD7500BPKT installed in UltraBase.