Some details of the hard disk drive:
Enclosure : Samsung M3 Portable USB Device (V=04E8, P=61B5, sa1) – st
Model : ST2000LM005 HN-M201AAD
Firmware : 2BC10008
Disk Size : 2000.3 GB (8.4/137.4/2000.3/2000.3)
Buffer Size : 32767 KB
Queue Depth : 32
# of Sectors : 3907029168
Rotation Rate : 5400 RPM
Interface : USB (Serial ATA)
Major Version : ATA8-ACS
Minor Version : ATA8-ACS version 6
Transfer Mode : SATA/600 | SATA/600
Features : S.M.A.R.T., APM, AAM, 48bit LBA, NCQ
Benchmarks on USB 3 port:
Test taken with 32 MB block size and fastest mode.
So, about 125 MB/s max, 15 ms access time and 32 MB cache.
The disk is quite quiet.
Benchmark on USB 2 port:
Some pictures: