Macally PHR-250CE - Manual (Page 16)

After the installation, you will get USB2.0 Hi-Speed for file transfer, if PHR-
250CE is connected to USB2.0 host adapter; if connected to USB1.1 port in
your computer, you will get USB1.1 speed transfer rate.
Note: If you don’t see the new drive letter added in My Computer after
driver is loaded properly, the reason could be the hard disk has not
partition and format yet, please partition and format the drive in the
enclosure before using it.
IDE Hard Drive Partition and Format procedures:
For Windows98SE/ME
If a new hard disk icon dose not appear in “My Computer”, check device
manager under system in the control panel. Then double click on
“Disk Drives” to see if a new entry appears.
If you can see a new entry as shown (Example, WDC WD80 OBB-32BSA0)
above, you are ready to partition and format the drive.
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