The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 3D Printers (4 members)
- AMD (10 members)
- AMD Computer Components (10 members)
- ANS (0 members)
- AV Equipment (1 member)
- AV Equipments (2 members)
- Acer (7 members)
- Acer Laptops (6 members)
- Anycubic (4 members)
- Anycubic 3D Printers (3 members)
- Apple (76 members)
- Apple Computer/All In Ones (1 member)
- Apple Laptops (18 members)
- Apple Phones (36 members)
- Apple Tablets (19 members)
- Asus (10 members)
- Asus Computer Components (1 member)
- Asus Laptops (7 members)
- Behringer (2 members)
- Behringer Others (1 member)
- Cameras (2 members)
- Candidates for deletion (0 members)
- Computer/All In Ones (2 members)
- Computer Components (31 members)
- Dell (2 members)
- Dell Laptops (1 member)
- Device (195 members)
- Drones (12 members)
- Epson (4 members)
- Epson Cameras (1 member)
- Epson Printers (1 member)
- Explanatory Guides (0 members)
- Explanatory guide (59 members)
- Explanatory guides for AMD GPUs (1 member)
- Explanatory guides for Apple Phones (2 members)
- Explanatory guides for Aspire E5-571G (1 member)
- Explanatory guides for CRT Displays (2 members)
- Explanatory guides for CRT Television (1 member)
- Explanatory guides for Capacitors (1 member)
- Explanatory guides for Computer Graphics Cards (1 member)
- Explanatory guides for Diodes (1 member)
- Explanatory guides for Epson ELPDC21 (1 member)
- Explanatory guides for GTX 1060 (6 members)
- Explanatory guides for GTX 1070 (6 members)
- Explanatory guides for GTX 1070Ti (6 members)
- Explanatory guides for GTX 1080 (6 members)
- Explanatory guides for GTX 1080Ti (6 members)
- Explanatory guides for General (2 members)
- Explanatory guides for IPhone 11 (1 member)
- Explanatory guides for IPhone 11 Pro (1 member)