The advantages of 1156-Z Retention Modules are to ensure that the LUNA REV.A SCW-REV.A Stealth is mounted securely on Intel LGA 1156/1155 platforms. It has the same 4 mounting points as the Intel socket 775 style, thereby providing better contact with the CPU and cooler. Caution! 1156-Z Retention modules are designed to be used with Enzotech Products "only"!