It holds a DIMM interface, it is ECC (better for servers), and it’s unbuffered. The Kingston KVR1066D3E7/1G also comes with a lifetime warranty. According to reviews, the KVR1066D3E7/1G memory performs up to par. There are higher grade models available, but it is more budget friendly, and it provides on-par performance. It is however not recommended for standard desktops and laptops, as it was designed strictly for use in a server.
