This is a kinda strange question...I wish to buy a DDR 400MHz 256Mb ram. It is a used one ie 2nd hand. Could someone tell me if there is a risk involved with it? I mean i know that electronic items can conk out any time, but would you recommend buying such items?
I don't know where are you from, but to find DDR modules in Europe is not difficult . There are a lot of stores where you can get some new modules. For example at alternate (Germany | Holland | Austria | Belgium | Spain):
I only would buy a second-hand module if I hadn't another options. A memory module is sensible and it can easily be damaged.
First hand DDR modules are available here in India too. But it costs about 16+USD, which is steep for me for a 256Mb ram. If i get a 2nd hand good one for less than half the price then it is a good option for me. But as you said, it can be easily damaged.
By damaged you mean the gold-plated contacts having scratches?