4GB KIT (4 x 1GB) Gigabyte Motherboard GA-K8NF-9 Rev 1.x 2.x GA-K8NF9 Ultra GA-K8NF-9-RH GA-K8NMF-9 GA-K8N-SLI GA-K8NXP-9 GA-K8NXP-SLI DIMM DDR NON-ECC PC2700 333MHz RAM Memory Genuine A-Tech Brand 4GB KIT (4 x 1GB) DIMM DDR NON-ECC PC2700 333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Gigabyte Motherboard. (See Compatibility List Below)