Kingston Technology ValueRam DDR3 1333 MHz ECC DIMM
http://www.amazon.co.uk/dp/B0064R7LH8?tag=dedik-21
Feature
* All ValueRAM products are 100% tested
* All modules go through a stringent component qualification process
* Full environmental stress, compatibility and reliability testing
* Free technical support
http://www.amazon.co.uk/dp/B0064R7LH8?tag=dedik-21