I-PRO SR3E-C,2U, DUAL XEON OCTA CORE CPU, 32GB RAM, WINDOWS SERVER STANDARD. OS ON 2X1TB HDD, TOTAL STORAGE 196TB (RAID 5), USABLE 182TB, KEYBOARD MOUSE. NO RAILS, NO OPTICAL DRIVE. TOTAL USABLE STORAGE IS CALCULATED BASED ON ADVERTISED HDD SIZE, NOT OS RECOGNITION. USABLE STORAGE SIZE MAY VARY SLIGHTLY 3 YEAR PRO-LIMITED HARDWARE WARRANTY WITH ON-SIGHT SERVICE