| Cat Name | Cat ID | Comment |
|---|
| + | Antiques | 20081 | |
| + | Art | 550 | |
| + | Baby | 2984 | |
| + | Books | 267 | |
| + | Business & Industrial | 12576 | |
| + | Cameras & Photo | 625 | |
| + | Cell Phones & PDAs | 15032 | |
| + | Clothing, Shoes & Accessories | 11450 | |
| + | Coins & Paper Money | 11116 | |
| + | Collectibles | 1 | |
| - | Computers & Networking | 58058 | |
| | | Apple Desktops | 111418 | |
| | | Apple Laptops & Notebooks | 111422 | |
| | | PC Desktops | 179 | |
| | | PC Laptops & Netbooks | 177 | |
| | + | Computer Components | 3667 | |
| | + | Computer Accessories | 31530 | |
| | + | Drives & Storage | 165 | |
| | + | Keyboards, Mice & Input | 3676 | |
| | - | Monitors & Projectors | 3694 | |
| | | | Monitors | 80053 | |
| | | - | Monitor Accessories | 51048 | |
| | | | | Adapters | 158844 | |
| | | | | Glare Filters | 51051 | |
| | | | | Monitor Power Supplies | 158845 | |
| | | | | Privacy Filters | 170597 | New Category |
| | | | | Stands & Risers | 51052 | |
| | | | | Screen Protectors | 158846 | |
| | | | | Wall Mounts, Arms | 51049 | |
| | | | | Other | 3697 | |
| | | | Projectors | 25321 | |
| | | | Projector Accessories | 99231 | |
| | | | Parts & Repair | 168068 | |
| | | | Other | 174 | |
| | - | Networking & Communications | 11176 | |
| | | | Filers & Load Balancers | 51167 | |
| | | + | KVM Switch Boxes & Cables | 51172 | |
| | | | Mainframes | 1479 | |
| | | + | Modems | 58297 | |
| | | + | Network Cables & Connectors | 20311 | |
| | | | Networking Hubs | 11180 | |
| | | + | Network Interface Cards | 20318 | |
| | | + | Network Power Protection | 86722 | |
| | | + | Network Storage Equipment | 51176 | |
| | | | Network Switches | 51268 | |
| | | + | Network Switch Components | 58319 | |
| | | + | Networking & Telecom Tools | 51169 | |
| | | + | Racks, Mounts & Patch Panels | 51197 | |
| | | + | Router Components & Memory | 69890 | |
| | | | Security, Firewall & VPN | 51168 | |
| | | + | Server Components | 51240 | |
| | | + | Telecom Systems | 11907 | |
| | | | Wired Print Servers | 64052 | |
| | | | Wired Routers | 11183 | |
| | | - | Wireless Networking | 69891 | |
| | | | - | Routers & Access Points | 44995 | |
| | | | | | AirPort Base Stations | 80059 | |
| | | | | | AirPort Express | 86701 | |
| | | | | | 802.11a | 86764 | |
| | | | | | 802.11b | 86765 | |
| | | | | | 802.11g | 44997 | |
| | | | | | 802.11g+ | 91356 | |
| | | | | | 802.11n | 170600 | New Category |
| | | | | | Other | 91357 | |
| | | | | Satellite Systems | 86717 | |
| | | | | Wireless Networking Kits | 40992 | |
| | | | | Wireless Print Servers | 67246 | |
| | | | + | Parts & Accessories | 158858 | |
| | | | | Other | 44996 | |
| | | | Workstation Components | 58361 | |
| | | | Workstations & Terminals | 1486 | |
| | | | Other | 11175 | |
| | | Printers | 178 | |
| | - | Printer Parts, Supplies & Accs | 11195 | Renamed from [Printer Supplies & Accessories] |
| | | | Cleaning, Repair Kits | 16190 | |
| | | | Feeders & Trays | 11197 | |
| | | + | Ink Cartridges | 16191 | |
| | | | Ink Refill Kits | 99319 | |
| | | | Ink Ribbons | 11202 | |
| | | | Laser Drum Cartridges, Fusers | 51288 | |
| | | + | Laser Toner | 16204 | |
| | | | Power Supplies | 101356 | |
| | | | Print Heads | 51328 | |
| | | | Printer Memory | 16211 | |
| | | | Printer Paper | 86728 | |
| | | | Printer Parts | 170599 | New Category |
| | | | Sign Vinyl | 44974 | |
| | | | Other | 1246 | |
| | - | Scanners | 11205 | |
| | | | Business Card Scanners | 101351 | |
| | | | Flatbed Scanners | 51087 | Renamed from [Standard Flatbed Scanners] |
| | | | Handheld Scanners | 101352 | |
| | | | Pen Scanners, Readers | 98806 | |
| | | | Photo, Slide Scanners | 101353 | |
| | | | Portable, Compact Scanners | 162076 | |
| | | | Scanner Components & Parts | 170601 | New Category |
| | | | Other | 3751 | Relocated within Parent |
| | + | Servers | 11211 | Relocated within Parent |
| | + | Software | 18793 | |
| | + | Technology Books & Resources | 3516 | |
| | + | Vintage Computing | 11189 | |
| | - | Web Domains & Services | 58059 | |
| | | | Domain Names | 3767 | Moved from [Domain Names-11154] Renamed from [Other] |
| | | - | Domain Names | 11154 | Combined into [Domain Names-3767] |
| | | | | .biz | 158892 | Combined into [Domain Names-3767] |
| | | | | .ca | 14439 | Combined into [Domain Names-3767] |
| | | | | .com | 11153 | Combined into [Domain Names-3767] |
| | | | | .info | 158893 | Combined into [Domain Names-3767] |
| | | | | .net | 11155 | Combined into [Domain Names-3767] |
| | | | | .org | 11156 | Combined into [Domain Names-3767] |
| | | | | .us | 158894 | Combined into [Domain Names-3767] |
| | | + | Services | 192 | |
| | + | Wholesale Lots | 159260 | |
| | | Other | 162 | |
| + | Crafts | 14339 | |
| + | Dolls & Bears | 237 | |
| + | DVDs & Movies | 11232 | |
| + | Electronics | 293 | |
| + | Entertainment Memorabilia | 45100 | |
| | Gift Certificates | 31411 | |
| + | Health & Beauty | 26395 | |
| + | Home & Garden | 11700 | |
| + | Jewelry & Watches | 281 | |
| + | Music | 11233 | |
| + | Musical Instruments | 619 | |
| + | Pet Supplies | 1281 | |
| + | Pottery & Glass | 870 | |
| + | Real Estate | 10542 | |
| + | Specialty Services | 316 | |
| + | Sporting Goods | 382 | |
| + | Sports Mem, Cards & Fan Shop | 64482 | |
| + | Stamps | 260 | |
| + | Tickets | 1305 | |
| + | Toys & Hobbies | 220 | |
| + | Travel | 3252 | |
| + | Video Games | 1249 | |
| + | Everything Else | 99 | |
| + | QA Test Clothing Shoes & Acces | 166299 | |
| + | QA Test Books | 168673 | |
| + | Partner | 10159 | |