Dell Precision M4400 Notebook PC - Intel Core 2 Duo 2.8GHz, 4GB DDR2, 250GB HDD, DVDRW, 15.4 Display, Windows 7 Professional (Off-Lease) (RB-810576020957) at TigerDirect.com
Dell Precision M4400 Laptop 15" Intel Core 2 Duo CPU 4GB RAM 250GB Windows 10 | eBay
Dell Precision M4400 15.4" RGB LCD Back Cover Lid & Hinges - P351D
Dell Precision M4400 laptop for use with ABB 800xA DCS - Industrial IT Certified Laptops for use with ABB 800xA DCS (Certified Hardware for System 800xA (backup))