Spartan but okay

The package includes only the adapter, a small
black box into which you can plug a PS2 memory card.
Unfortunately, the required connecting cable is missing, but is with the
Cable identical accompanying the Playstation3 to charge the gamepad.
(USB-A to USB A-mini).
On the PC, the adapter will not be recognized as a card reader.

On the PS3, the adapter works fine, but the reading
the map took much longer than writing to me
the map.

Yes, contrary to the warning on the packaging, you can Scores
copy of the internal (simulated) card of PS3 on the PS2 card.
Finally you can therefore save the contents of the memory card properly,
albeit indirectly via the PS3.
(Tested on a PS3 with firmware 1.93)