I would not use that PSU :disagree:, see below.
The following are copied from the PX-716UF user manual.
USB & Firewire interface both *Typical power consumption 23w
Standby 500 mA
CD/DVD Read/Write 1.7A
Peak 2.8A*These parameters were not yet confirmed at the time this manual was published.
Original PSU for the PX-716UF (data taken from the PSU itself)Input: 100V-240V~, 0.75A-0.4A, 50Hz-60Hz
Output: 12V 3.0AFirmware is the same for the PX-716A, PX-716SA and PX-716UF
Original Plextor executable firmware v1.11 size: 719 921 bytes.
I do not use Plextools XL anymore as it puts too much load on my Windows XP ripstation (Pentium 4 monocore)