I found this free and very nice computer assets pack made by NDFJay. The pack can be download from my GoogleDrive account and have been added to my UE4 resources page too 😀
The pack include : Desk, PC Case (similar to the NZXT S340), Monitor, Keyboard (Razor), Mouse (generic), Mousemat, Gaming racer chair, CD’s, External CD drive, Desk lamp, USB thumb drive, Wall radiator, Cup coaster + coffee cup, Laptop, E-vape, Modular surround sound speakers.