HP LaserJet Pro MFP M428 series. Technical Specifications HP LaserJet Pro MFP M428fdn (W1A29A) HP LaserJet Pro MFP M428fdw (W1A30A) Product Dimensions WxDxH:16.54 x 15.35 x 12.72 in; 420 x 390 x 323 mm1. Maximum:16.93 x 25 x 12.8 in; 430 x 634 x 325 mm Product Weight 27.78 lb; 12.6 kg What's in the box HP LaserJet Pro M428;