ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR DELL W5300n, Laser, 1200 x 1200 DPI, A4, 45 ppm, Network ready, Black, Silver DELL W5300n. Print technology: Laser. Number of print cartridges: 1. Maximum resolution: 1200 x 1200 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 45 ppm. Network ready. Product colour: Black, Silver https://www.cnet.com/reviews/dell-w5300n-review/ Spec: Laser, 45 pages/min, Wired, Monochrome, PC, 1200 dpi x 1200 dpi Good: Extremely fast text and graphics printing. Bad: Noisy; some flimsy plastic parts; weak network-support documentation; not Mac compatible. Bottomline: The Dell W5300n is a good choice for a busy workgroup with a capable IT staff.