I have received the goods on time on 18.10.2914 by mail. The two memory kits were original surge securely packaged. After a support staff member of Lenovo has declared an upgrade my laptop to 8GB impossible I put great care in the selection of memory chips on de day and read all customer recessions of various manufacturers. In all cases kept coming before the failure. My purchase specification was: 2x4 GB DDR SDRAM 1066MHz SO-DIMM 204-pin 1.5 V. Even small differences (eg different frequency, different supply voltage) can lead to failure. The above Samsung Kit came my Spec. the next. Unfortunately there was an indication of the supply voltage. These things happen, unfortunately, with Amazon and its suppliers more frequently. Actually completely inexplicable, since the suppliers so detailed by manufacturers Get data lists. Now, if the supply voltage 1.3 or 1.5 V? Over the specified vendor reference number. G2-9R4E-8NSB-3 I was able to access the Samsung manufacturers data and take them 1.5V. Actually I wanted to emphasize a star because of the missing information. However, since after installation of the DIMM's everything instantly worked perfectly, I have refrained from. Except for the unnecessary extra work I am fully satisfied with the product ..
