just bought a no brand SATA/IDE/USB cable.
it can find 250G HDD [WD], but can't find 320G HDD [Seagate]. :cry:
what's wrong?

go back to dealer for help.
found the problem is caused by power. that switch power supply can't provide enough current for seagate HDD, even it marked 2a. he replaces another same power supply, bingo, now works good. he says not every power supply has same current even marked 2a.

so if you have similar issue, go back to dealer ASAP.

>>>R-Drive II 的 Power Supply 設計不良
其實那開關製作個人覺得有問題
只有把12V斷開(還是5V斷開,忘了反正只斷開一個,另一個繼續供電@_@)
無聊可以用3用電錶量........

反正我都用POWER當電源所以沒差XD