Amazon.com: Psitek Aluminum Vertical Laptop Stand Dock Holder, Space-Saving Upright Storage for All MacBook and Laptops, Adjustable Slot Width (10-30mm/0.4-1.2 inch), Version 2023 : Electronics
Ports and Slots in Laptops | Tech Explainer
Kensington Security Slot - Wikipedia
What Is Kensington Security Slot Aka That Weird Hole In Your Laptop?