Lenovo G27e-20 27" 120 Hz Monitor - Manual (Page 10)

3. For computer in DP connecting.
HDMI
DP
DP
4. For computer in HDMI connecting.
Note: For other regions Lenovo recommends that customers who require to use the
HDMI input on their monitor purchase the "Lenovo HDMI to HDMI cable OB47070"
http://www.lenovo.com/support/monitoraccessories
HDMI
HDMI
HDMI
1-5 G27e-20 Flat Panel Monitor User’s Guide