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 Mobile Workstation - Intel Core 2 Duo P8600 2.4GHz, 4GB DDR2, 320GB HDD, DVD-ROM, 15.4 WXGA, 512MB Quadro FX 770M, Win 10 Pro 64-bit, 1 Year Warranty, Refurbished -
Dell Precision M4400 Hard Drive Replacement - iFixit Repair Guide