Setup Guide

Rear view
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Figure 7. Legion Y540-15 series - rear view
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Figure 8. Legion Y540-17 series - rear view
1. Ventilation slots (outlet)
Maintain the outgoing airflow to dissipate internal heat.
Note: Do not block the ventilation slots. Otherwise, the computer might overheat.
2. USB-C™ connector
• Charge USB-C compatible devices with the output voltage and current of 5 V and 3
A.
• Transfer data at USB 3.1 speed, up to 5 Gbps.
• Connect to an external display.
– USB-C to VGA: 1900 × 1200 pixels, 60 Hz
– USB-C to DP: 3840 × 2160 pixels, 60 Hz
• Connect to USB-C accessories to expand computer functionality. To purchase
USB-C accessories, go to
https://www.lenovo.com/accessories
Note: When the battery power is below 10%, the connected USB-C accessories
might not work correctly.
3. Mini DisplayPort
®
connector
Connect to a compatible projector, external monitor, or high-definition television
(HDTV).
4. USB 3.1 connector Gen 1
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
5. HDMI™ connector
Connect to a compatible digital audio device or video monitor, such as an HDTV.
6. Ethernet connector
Connect to a local area network (LAN). When the green indicator is on, the computer is
connected to a LAN. When the yellow indicator blinks, data is being transmitted.
7. Power connector
Connect to ac power through an ac power adapter.
8. Mini security-lock slot
Lock your computer to a desk, table, or other fixtures through a compatible security
cable lock.
8 Legion Y540 Series User Guide