Used in my personal rig before I upgraded to 64GB. All four sticks work perfectly fine, only upgraded for overhead. Originally purchased from Amazon. Here's some boiler plate description:

About this item Hand-sorted memory chips ensure high performance with generous overclocking headroom. Vengeance LPX is optimized for wide compatibility with the latest Intel and AMD DDR4 motherboards. A low-profile height of just 34mm ensures that vengeance LPX even fits in most small-form-factor builds. A high-performance PCB guarantees strong signal quality and stability for superior Overclocking ability. A solid aluminum heatspreader efficiently dissipates heat from each module so that they consistently run at high clock speeds.