It works. What more can you ask?
The memory card is an essential item for your ps2 console, i personally bought it so i could play some old games on my ps2 which is sooo much fun at the moment. The card hold enough saved data to play all your games. I highly recommend revisiting your old games and playing them!
I bought this mainly as an addition to the PS2 memory card I already own as I was running out of space( Since I still like to play old PS2 games). This is an indispensable piece of kit for the good old PS2.
With 8Mb available, thats a lot of replays, game data, and stats you can save. And the faster transfer rate will be welcome saving faster means you can get back into gaming sooner.
The memory card incorporates Sonys proprietary authentication and encryption security system, "MagicGate."