T440 M.2 slot question 2017-11-11, 13:34 PM Hi, I have a T440 with the M.2 slot next to the wifi adapter free and the M.2 slot under the internal battery free as well. In-depth review of the Lenovo ThinkPad T4YGE (Intel Core i7 4600U, Intel HD Graphics 4600, 14.0', 1.7 kg) with numerous measurements, benchmarks and evaluations.
OK, before I buy one of these, I want to be sure I know what I'm getting into. I looked at the user manual] and found several notes about the M.2/NGFF drive slots. It has two, in addition to a 2.5' drive bay. But... when I read the manual, it says:RAM: Both the ThinkPad T440 and the ThinkPad T440s support up to 12GB of RAM. One memory slot can house up to an 8GB module, and there is also 4GB soldered onto the motherboard. The low end T440 doesn’t have on-board memory, relying solely on the memory slot. Detailed Specifications - ThinkPad T440. Our Company News Investor Relations.
When buying an SSD, be sure to purchase an M.2 drive that is exactly 42mm long, the only length that will fit in the ThinkPad T440s’s narrow slot. Though M.2 is the next-generation of mSATA, it is not backward compatible so you need to make sure the drive is listed as M.2, not mSATA.