| Memory Type | Dual-Channel    DDR31600/1333 MHz
 | Dual-Channel    DDR31600/1333 MHz
 | Dual-Channel    DDR31600/1333 MHz
 | 
                      
                        | USB | 4 USB 3.0    ports, 8 USB 2.0 ports | 4 USB 3.0    ports, 8 USB 2.0 ports | 4 USB 3.0    ports, 8 USB 2.0 ports | 
                      
                        | Features& Software | 
                          Dual UEFI BIOS, Gen.3 support,Ultra Durable 4 Classic,USB3.0,
 SATA 3, 3X USB Power,mSATA, CrossFireX, On/Off charege,
 All Japanese solid capacitors,
 LAN Optimizer
 
 | Dual UEFI BIOS, Gen.3 support,Ultra Durable 4 Classic,USB3.0,
 SATA 3, 3X USB Power, CrossFireX, On/Off charege,
 All Japanese solid capacitors,
 LAN Optimizer
 | Dual UEFI BIOS, Gen.3 support,Ultra Durable 4 Classic,
 USB3.0, SATA 3,
 3X USB
Power(For USB3.0 only),
 CrossFireX, On/Off charege,
 All Japanese solid capacitors,
 LAN Optimizer
 |