![I have a Lenovo Thinkpad T420. I just Noticed a icon and switch and the side of my Laptop. What is that? : r/thinkpad I have a Lenovo Thinkpad T420. I just Noticed a icon and switch and the side of my Laptop. What is that? : r/thinkpad](https://i.redd.it/hgzu8dogmipa1.jpg)
I have a Lenovo Thinkpad T420. I just Noticed a icon and switch and the side of my Laptop. What is that? : r/thinkpad
![2011 14″ Lenovo Thinkpad T420 (Q NVS4200M) [2nd,2C,M] + RX 460 @ 4Gbps-EC2 (EXP GDC 8.x) + Win10 // DIY HDMI input port: internal & external all in one LCD with button 2011 14″ Lenovo Thinkpad T420 (Q NVS4200M) [2nd,2C,M] + RX 460 @ 4Gbps-EC2 (EXP GDC 8.x) + Win10 // DIY HDMI input port: internal & external all in one LCD with button](https://imgur.com/V25YZ0f.jpeg)
2011 14″ Lenovo Thinkpad T420 (Q NVS4200M) [2nd,2C,M] + RX 460 @ 4Gbps-EC2 (EXP GDC 8.x) + Win10 // DIY HDMI input port: internal & external all in one LCD with button
![100W USB Type C Fast Charging Cable Cord for Lenovo Thinkpad T61 T60 T420 T430 USB-C to 7.9X5.5mm Laptop Power Adapter Connector - Newegg.com 100W USB Type C Fast Charging Cable Cord for Lenovo Thinkpad T61 T60 T420 T430 USB-C to 7.9X5.5mm Laptop Power Adapter Connector - Newegg.com](https://c1.neweggimages.com/productimage/nb640/AMCVS201021lSORH.jpg)