4GB Total Memory Consisting of 2pcs of 2GB DDR3-PC8500 CL7 PC3 1066MHZ 240PIN DIMM
Lifetime warranty for exchange. by Computer Memory Solutions
Brand Computer Memory Solutions
We don't use Generic modules to avoid incompatibility issues. 
Guaranteed to work or you get all of your money back including shipping.

Compatible with:

ASRock G41C-GS LGA 775 Intel G41

MAX MEMORY 8GB

SOCKETS 2

Please read description before buying this product to avoid incompatibilities.
This motherboard supports the following items.
Dual Channel DDR3/DDR2 memory technology
- 2 x DDR3 DIMM slots
- Supports DDR3 1333/1066/800 non-ECC, un-buffered memory
- Max. capacity of system memory: 8GB*
- 2 x DDR2 DIMM slots
- Supports DDR2 800/667/533 non-ECC, un-buffered memory
- Max. capacity of system memory: 8GB
*

DDR3 and DDR2 are supported separately.

**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. For Windows® 64-bit OS with 64-bit CPU, there is no such limitation.

***In order to maximize the system memory, please install two dual sided 4GB memory modules