In recent years I have been a little out of the loop with PC builds and then all of a sudden have a few to build. The Jonsbo D40 ATX Black Case was bought for a smallish ATX build using mostly 'pre-loved' components.
The case itself is built to a good standard, it seems robust enough, 2 Thumbscrews secure the plastic Top Panel giving access to 2 standard screws on each side for removing the Side Panels. The Side Panels slot in place very nicely, no fiddling about is necessary and the Glass Panel is a decent thickness.
No fans are supplied with the case but the fan mounts allow for 2 x 120mm or 2 x 140mm fans on the top and bottom and a 120mm fan at the top rear of the case. There are no fans on the front as it is a solid panel. I shall install 900RPM Noctua fans top and bottom to build a quietish PC.
Installing the Motherboard was a breeze and the cut out behind the CPU is large enough for accessing the heatsink brackets allowing for changing the brackets to fit a new heatsink without taking the Motherboard out. There are also plenty of holes to allow neat cabling to the Motherboard.
Storage space has changed over the years, there is room for just 1 3.5" Hard Drive, this is at the bottom of the case and the SATA power and Data leads are a tight fit. I tracked down Left Angle SATA leads for this and it looks much neater and with less stress on the leads.
The SSD/2.5" mounts are on a vertical panel and look equally awkward, standard Right Angle leads would work for these though.
Overall it is a very nice case, looks fairly modern and if a little time and thought is spent on the build rewarding to work with.