These are the ultimate cable management clips: Awesome quality and beauty. You need 6 mm space between motherboard tray and sidepanel to install it.

Specification:

• Fixing Hole Ø (FH): 4.2mm
• Bundle Ø max: 16.0mm
• Fixing Hole Centres (F): 16.0mm

 Package Contains:

- 25 Cable Managment Clips

Screws for installation are not included. You can get them: here