Unbuffered memory

[MoeMo]

Hello,
what does unbuffered memory, non ECC mean on 8GB Kit (4GBx2)
DDR3 PC3-12800 • 8-8-8-24 • Unbuffered • NON-ECC • DDR3-1600 • 1.5V • 512Meg x 64 • • Part #:

 

[treefrog07]

Non Ecc: Non Error Correcting Code

Unbuffered: Ram where there is no hardware register between the memory controller and RAM.