RAMCHECK LX DDR4 PRO/DDR3 is our latest, top-of-the-line memory tester for 288-pin DDR4 and 240-pin DDR3 desktop and server DIMMs, including LRDIMM (Load-Reduced DIMM). Features rugged, high-volume test sockets for many thousands of test cycles! Also available is the RAMCHECK LX DDR4 Pro tester.