The 32GB DDR4 2133 MHz UDIMM Memory Kit from Crucial comes in a package of two 16GB memory modules for increasing the multitasking capabilities of your desktop. Each UDIMM module is compatible with systems that have an available 288-pin memory slot. For performance, it is designed to run at a 2133 MHz frequency (PC4-17000) with a CAS latency of 15. When compared to DDR3, DDR4 memory processes data faster while requiring only 1.2V of power. In addition, Crucial has outfitted the dual-ranked memory modules with x8-based chips.