Product Id: 31294661
Description: Lenovo - DDR4 - 16 GB - SO-DIMM 260-pin - 2133 MHz / PC4-17000 - 1.2 V - unbuffered - ECC - for ThinkPad P50 20EN, 20EQ; P70 20ER, 20ES
Mfr Part #: 4X70J67438
MSRP: $299.99Adding more memory increases system performance. This Lenovo 16 GB DDR4 2133 MHz ECC SoDIMM memory allows you to upgrade your system's performance and enhance its ability to run more programs simultaneously. Test-proven 100% compatibility listed for supported systems.