The HP 45W USB-C AC Adapter supports three different voltages with a slimmer connector than traditional barrel power connectors.[1] Smart voltage Its PD technology automatically detects and delivers 5V, 12V, or 15V based on your devices needs. Convenient compatibility This 45W USB-C adapter lets you use your existing HP Smart AC adapter’s power cord. HP tested and reliable Tested, reliable, and backed by a one-year limited warranty.