Full Details from Amazon.com : http://www.amazon.com/gp/product/B00O4UJ5BC?tag=onigi-20
AMD Radeon Memory Apple Mac Pro Series DDR2 800 MHz PC2-6400 CL6 ECC FB Internal Memory (AA28G8006EF2K-G)
Apple Approved Heat Shield
Lifetime warranty
Reliable - 100 factory tested