Kingston's value-priced line of industry-standard, generic memory manufactured to a particular specification. Designed with the whitebox user and system integrator in mind, Kingston ValueRAM products are engineered to meet industry standard specifications and rigorously tested to ensure quality. Kingston ValueRAM is ideal for those who purchase memory by spec and are looking for competitvely priced generic memory that is 100-percent tested to meet industry specifications.

DDR3 is the next generation of Double Data Rate (DDR) Synchronous Dynamic Random Access Memory (SDRAM). It is an evolution of DDR and DDR2 memory technology that delivers higher speeds (at launch up to 1066MHz for ValueRAM^® memory, beyond 1333MHz for HyperX® memory), lower power consumption and heat dissipation.

Memory modules (Unbuffered, Registered, Small Outline DIMMs) have a special “key” or notch in their connector. These keys must align with a key in the memory socket to allow the module to be inserted. All DDR3 and DDR2 module types are keyed differently.

 

More information can be found on Kingston Technology's Website 

JEDEC Memeory Specifications

The chart below summarizes some of the differences in the official JEDEC DDR2 and DDR3 specifications.

JEDEC DDR3 specifications define standard DDR3 CAS Latencies of 7, 9, and 10:

-1066MHz DDR3: CAS 7 (7-7-7)
-1333MHz DDR3: CAS 9 (9-9-9)
-1600MHz DDR3: CAS 10 (10-10-10)

More information can be found on JEDEC's Website