Laser LaserJet Pro M501dn USB 2.0 ETH Windows 10 Windows 8 Windows 7 Linux MacOS Windows Vista Paper size A4/210 C- 297 Paper input 100 sheets Paper output 250 sheets First print 5.8 sec Print speed PPM 43 Memory (RAM) 256MB Duty Cycle 100000 Pages/month Dimensions Minimum: 418 x 376 x 289, Maximum: 418 x 639 x 289mm