You could have an HDMI output from your laptop that needs to be connected to a VGA input on your monitor. In such a situation, you’ll need to use an HDMI to VGA adapter.

An Apple spokesperson told The Verge that Lightning to HDMI and Lightning to VGA cables “will be available in the coming months.” by Sean Hollister Sep 13, 2012, 4:07 PM PDT ...

Both HDMI and VGA output connections are active at the same time, therefore HDAiR receiver could be used to power up 2 displays at the same time with identical content.

I need the ability to connect a component output to the monitor, but here is is anyway; DVR w/ HDMI, DVD player w/ component out, VGA KVA switch (for an 2nd PC when needed) and a PC using DVI.

In addition to 4K at 30Hz HDMI support and 1080p over VGA (with capable monitors), it also includes passthrough USB-C power (no USB-C data), two USB 3.1 (5 Gbps) Type-A jacks, and gigabit ethernet.

Contrary to what continuum says (he's usually spot on, though), it's quite normal for a HDMI to VGA adapter to be fairly warm. Ballpark figure for a HDMI to VGA decoder is around 200 mA at 5 volts.

HDMI is really best for connecting a PC to an HDTV. Consequently, I’d go with a DVI cable. That’ll give you a pure digital signal (VGA is analog) and a much sharper picture at higher resolutions.

The 30-pin adapter already will come in two variations: a $39 7-inch adapter cable and a $29 stub adapter. Both are listed as shipping in two to three weeks, which would mean around early October.