I have one of these laptops.
This is the 15.6 version of the $500 14 inch Microsoft store deal last week.
The 256 gig HD is m.2. There is an open 2.5 sata slot as well for a 2nd hard drive. This Lenovo does not have the funky shift key. There is 1 ram slot so it is upgradable to 16gb if your purchase a new ram stick.
Screen is IPS but is a bit dull for my taste my only complaint. Overall solid laptop.
Screen Size 15.6 inches
Max Screen Resolution 1920x1080 pixels
Processor 1.6 GHz Intel Core i5
RAM 8 GB
Hard Drive Flash Memory Solid State
Card Description Integrated
Wireless Type 802.11 A/C
Number of USB 3.0 Ports 3
Other Technical Details
Brand Name Lenovo
Item model number 81CA0008US
Operating System Win10 Home
Item Weight 4.4 pounds
Product Dimensions 9.7 x 0.8 x 14.3 inches
Item Dimensions L x W x H 9.72 x 0.78 x 14.33 inches
Processor Brand Intel
Processor Count 4
Flash Memory Size 256.0
Optical Drive Type None
Batteries 1 Lithium Polymer batteries required. (included)