The Lenovo FRU00HM611 is an AC-to-DC power adapter for a compatible Lenovo laptop; it is also listed as part number 00HM611.
It supplies 45 W at 20 V DC, with a listed output current of 2.25 A. The 100–240 V AC input supports 50/60 Hz and uses a 3-pin C6 type, while the DC connector is described as a USB square yellow tip.
The listing identifies it as black and names the ThinkPad E450 as compatible. Check your laptop’s requirements and connector before choosing this adapter.