[Richard] pointed out this mini-itx laptop. The idea behind this particular design is to enable upgrading every component as needed. The case is aluminum, and the wiring inside is an exercise in patience. It’s not the first DIY laptop we’ve seen, and it doesn’t have batteries, but it’s the first I’ve seen with two internal hard drives.

Update: There is a battery, it just gets very little mention. It’s hiding under the DVD drive and one of the hard drives. Anyone know what kind it is?