Notebook 的 SD RAM

Kingston, SamSung, all ok
Kingston PC-133 512MB SDRam approx HK$ 493.00
But make sure your Notebook support 512mb wor.
Also are you sure it use SDRam?
Some use SDimm, also there is single layer or dual layer also DDR333 DDR400 DDR23 etc
Better take notebook with you, many shops will help check what type you use and put them in for U.

The slot look very similiar for the non-professional

If HP/Dell more standard and cheap
If Sony, panasonic or toshiba etc. may need higher price

如果想平宜一點，或不太知道RAM類別，可帶Notebook 到深水土步新高登有二手RAM賣。又可先試後買，便不用買錯。牌子方面，個人覺得分別不大，但要注意Warranty的年期。