Memory Standard: DDR4 2666/ 2400/ 2133 MHz, non-ECC, un-buffered memory
* The maximum memory frequency supported varies by processor
** DDR4 2666 MHz and higher memory modules will run at max. 2666 MHz on Intel 8th Gen. 6-core or higher processors
*** Refer to www.asus.com for the Memory QVL (Qualified Vendors List)
Compatibility: Compatible with the following 65w and 90w DualCore ThinkPad Models with Integrated Graphics: ThinkPad 20AQ, L440, L450, L460, L540, L560, P50s, T440, T440p, T440s, T450, T450s, T460, T460p, T460s, T540p, T550, W550s, X240, X250, X260.
NOT recommended if the system AC adapter is 170W.