I'm planning to start a laptop/computer repair service from home, mostly for my neighbors. I've received some requests, which are mostly people complaining their laptop is slow. From my experience, the most cost effective way of speeding up a laptop is to just replace the HDD with an SSD. But I'm not sure which SSD to use for the upgrade. I personally am using Samsung 860 EVO, but it's a bit expensive (RM200 for 250GB) for those who don't really care which specific brand is better and just want a fast laptop for the lowest price. Any suggestions? And is there a place I can buy the SSD in bulk for a cheaper price per unit?

Preferably I want to avoid generic China brand. Quick google shows that they tend to have inconsistent quality. One unit might work great, but another can fail after just few months of use. And I don't want to deal with the logistics of returning a faulty SSD to China. So I'm sticking with known brands, but on the cheaper side.

Some brands I came across on LYN are Kingston A400 and Adata SU650. Any other options than these 2 out there?

As for the quantity, I don't plan to buy in bulk in the short term. Just asking around for future reference.

That's why I specifically mentioned the SSD will be for general end users who just wants a laptop that feels fast (e.g. light browsing, watching Youtube, editing files, etc.). I don't think they care about the SSD having DRAM or not. And they probably don't want to spend extra on that either.

Hmm, point taken. I've heard about that issue before. Seems like you have to ensure to have at least 30% unused space. So which budget SSD with DRAM do you recommend?

Thanks for the recommendation guys. Looks like Kingston UV500 is the cheapest SATA3 SSD with DRAM.