Which one to use for this system?
Chip: Intel i7 4790 quad core 4ghz
Motherboard: Asus Z97M-Plus
GPU: Gigabyte Geforce GTX970 4096MB DDR5 - GV-N970G1 Gaming-4GD
RAM: Corsair Vengeance 16GB
SSD: Samsung EVO 850 250GB/500GB
Internal HDD: Seagate 3TB SATA3 64MB - 7200 RPM
Monitor: BenQ XL2730Z
Case: Prodigy M Cobalt Blue BFC-PRM-300-GGXKK-RP
Case: Corsair Carbide Air 240
Logitech Wireless Desktop MK520
Chip: Intel i7 4790 quad core 4ghz
Motherboard: Asus Z97M-Plus
GPU: Gigabyte Geforce GTX970 4096MB DDR5 - GV-N970G1 Gaming-4GD
RAM: Corsair Vengeance 16GB
SSD: Samsung EVO 850 250GB/500GB
Internal HDD: Seagate 3TB SATA3 64MB - 7200 RPM
Monitor: BenQ XL2730Z
Case: Prodigy M Cobalt Blue BFC-PRM-300-GGXKK-RP
Case: Corsair Carbide Air 240
Logitech Wireless Desktop MK520