HP (Hewlett Packard) LaserJet Enterprise 600 M601dn (CE990A) is a monochrome (black and white), workgroup laser printer. It has a print resolution of 1200 x 1200 dpi with HP's Resolution Enhancement Technology, which makes each print clearer and sharper. It has a print speed of 43 pages per minute with first page out in 8.5 seconds. The HP LaserJet Enterprise 600 M601dn has a 600 sheets total input capacity and 500 sheets total output capacity, It includes 1 x 100 sheets and 1 x 500 sheets. It has a maximum media capacity of 1,100 sheets. It's media types are envelopes, transparencies, labels, plain paper, cards, bond paper and recycled paper. It's media sizes are Letter A Size, Legal, Executive, A4, A5, JIS B5, Statement. It has a monthly duty cycle of 175,000 sheets. It also features automatic duplexing printing, 512 RAM, ethernet, USB and ethernet connectivity. The HP LaserJet Enterprise 600 M601dn comes with a 1 year manufacturer warranty. HP LaserJet Enterprise 600 M601dn uses 90A black cartridge. Cartridge model number is CE390A.