How to Upgrade RAM in Your HP Laptop (with RAM underneath keyboard) - YouTube
250GB HP EliteBook 2560p 2.5" SATA Laptop Hard Drive (HDD) Upgrade Replacement | eBay
HP EliteBook 2560p (QA086PA) Review: A 12.5in business laptop with good speed and features, but still a little underdone - Brand Centre - HP - PC World Australia
HP Elitebook 2560P Intel Core i7-2620M 2.7GHz 2nd Gen CPU 4GB RAM 320GB HDD Windows 10 Pro 12.5-inch Laptop (Refurbished) - Overstock - 16633872