G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2400 (PC3 19200) Desktop Memory Model

Used these in a custom build with an ASUS MB. Easy to install, fit nice and firm in the slot. BIOS detected it without a problem and I was able to overclock it. I do not recall exactly what I ended up at, but it is running stable at a relatively aggressive setting. Upgrades made the machine much faster and capable with large data sets. I would purchase again.

Installed 2 sets on 2 computers. Both work just fine and run at the advertised speeds using XMP.Installed on a couple older X79 boards that support 2400 speeds.

My ASUS P8P67 deluxe MB with Intel i7-2600K dinosaur should support that speed without overclocking, but I could not get that going. They work just fine with the other 2.133G banks from a different "C" manufacturer. Ran Memtest86+ without any problem and they have been running strong for a few weeks.They where shipped from the UK, so they don't come fast, but now me server will last forever. Not. Cheap.

Best for old pc upgrades