Featuring USB and Ethernet connectivity, the HP LaserJet Pro 4001dn is a network-based monochrome printer designed for work teams of up to 10 users. Although the 4001dn doesn't have Wi-Fi or Bluetooth, it still allows you to use the HP Smart app (iOS/Android) to print from anywhere. This is done by using your smartphone's network to connect to the printer. The app allows you to print, scan, and get time-saving shortcuts for common tasks. The 4001dn prints up to 42 ppm in black, in 1200 x 1200 dpi resolution, and it supports automatic two-sided printing. The printer features a 100-sheet multipurpose tray and a 250-sheet standard input tray. An optional 550-sheet third tray is also supported. You can also manage your security settings. There are preconfigured settings right out of the box, plus you can add a layer of security, set configuration policies, and validate settings. Additionally, a PIN/pull option authenticates your print jobs only when you're present. The 4001dn comes with a single toner cartridge. Supported replacement cartridges include the HP 148A Black Original LaserJet Toner Cartridge (2900 pages) and the 148X Black Original LaserJet Toner Cartridge (9500 pages).