Arch Memory 8 GB (2 x 4 GB) 240-Pin DDR3 UDIMM Interchangeable with KVR1333D3N9K2/8G Anti-Static Gloves included Arch Memory is a registered trademark of Arch Computer, LLC 8GB Upgrade includes 2 x 4GB Modules Interchangeable with KVR1333D3N9K2/8G Lifetime Replacement Warranty Included Anti-Static Gloves included for protection during Installation