This is a good replacement for lost covers. They are vented which may or may not work for you. Otherwise they look and work fine.
π₯οΈ Helifouner 450-Piece Computer Standoffs Spacer Screws Kit: Ideal for Hard Drive, Motherboard, Fan, Power Graphics & Computer Cases
10 Review
uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review
36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review
M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review
Enhance Your Development Projects with the NVIDIA Jetson Nano Developer Kit (945-13450-0000-100)
12 Review
Neural Compute Stick 2 by Intel
12 Review
π UCTRONICS GPIO Breakout Kit for Raspberry Pi Pico - Assembled Pi T-Type Breakout + 830 Tie Points Solderless Breadboard + 40 Pin Male-Female-Male Rainbow Ribbon Cable + 65pcs Premium Jump Wires
10 Review
Complete Kuman Raspberry Pi 4B 3B+ Kit: Breadboard, Expansion Board, Jumper Cables, Ribbon Cable, Resistance Pack
9 Review