These two cards have served me well sense 2017. Only reason I am selling them is I upgraded my gaming PC and it's not a good idea to mix memory. But if you have an older board and you're building a NAS, this is for you.

Chosen By Overclockers Enthusiasts' choice can’t be wrong. Building on the world-class performance and overclockability, G.SKILL RipjawsX series memory has been voted as the Best Memory Series by the community of the overclockers in 2011! If you need a high performance and high quality kit to complete your enthusiast PC, look no further.

All G.SKILL DDR3 overclocked memory kits come with Intel XMP profile support. It provides a trouble-free overclocking experience by simply enabling the XMP profile in the BIOS.*

• Enable the XMP profile in the BIOS to reach up to the rated overclock speed of this memory kit. Maximum memory speed and system stability depends on the capability of the motherboard & CPU.

Specs: Memory Type DDR3 Capacity 8GB (4GBx2) Multi-Channel Kit Dual Channel Kit Tested Speed (XMP/EXPO) 1866 MT/s Tested Latency (XMP/EXPO) 9-10-9-28 Tested Voltage (XMP/EXPO) 1.50V Registered/Unbuffered Unbuffered Error Checking (ECC) Non-ECC SPD Speed (Default) 1600 MT/s SPD Voltage (Default) 1.50V Fan Included No Warranty Limited Lifetime Features Intel XMP (Extreme Memory Profile) Ready