Brother HL-2150N is a monochrome (black and white) laser printer. It features 32 MB RAM, 181 MHz processor, USB and ethernet connectivity. The Brother HL-2150N has a 250 sheet input capacity and 100 face down output sheet. The Brother HL-2150N uses two toner cartridges and one drum unit, the toner cartridges consist of a standard yield and a high yield toner. The standard yield can print up to 1,500 pages at 5% coverage, while the high yield can print up to 2,500 pages at 5% coverage. The toner cartridge model numbers are TN330 (TN-330) which is the standard yield and TN360 (TN-360) which is the high yield toner. The drum unit model number is DR360 (DR-360), which has a duty cycle of 12,000 pages at 5% coverage. The Brother HL-2170W has a print resolution of 2400 x 600 dpi, it's print speed is 23 pages per minute. It's media types are plain paper, bond, transparencies, labels and card stock. It's media sizes are letter, legal, executive, A4, A5, A6, B6, folio and envelopes.