A-Tech 8GB KIT (2 x 4GB) For Asus P8 Motherboard Series P8H61-M LX2 P8H61-M LX3 P8H61-M LX3 Plus P8H61-M LX3 Plus R2.0 P8H61-M Plus P8H61-M Plus V2 P8H6. DIMM DDR3 NON-ECC PC3-10600
ASUS P8H61-M LX3 PLUS R2.0 Video Card Compatibility - CPUs, Motherboards, and Memory - Linus Tech Tips
Asus P8H61-M LX3 PLUS R2.0 user manual (English - 68 pages)