SinLoon PD to DC Adapter Cable 5V, 9V, 12V, 15V, 20V Adjustable Voltage DC to DC Charger 12V Typec Male to DC5521 Male Power Cord with 10 DC Conversion Heads, Suitable for Routers, Notebooks, etc.

Works well for my needs. Used with telescope and other items and provides power as needed. Might be obvious but the connector DC numbers relate to the size of the socket/plug. e.g. DC5525 is 5.5mm OD x 2.5mm ID (outer and Inner diameter). DC5521 is 5.5mm x 2.1mm and so on. Might help someone although for the life of me I don't know why there are so many sizes!

very nice set of adapters

works well in some cases and does not in others. sensitive to power in and out. bought 4, use all daily

This works perfectly for me. I have the correct ability powerbank with USB-C PD out. This means the lead works as described. I tried it with a couple of cheaper powerbanks and it flashes up an error message at certain voltage outputs. Have used it 'off grid' to power a 20v laptop and also tried various other items around the house that normally would use a transformer. My son thinks it is brilliant that his electric drum kit is now portable!

Ignore reviews which speak of overvoltage conditions and damage being done, the reviewers clearly fail to understand how these devices operate and what they are doing. Their purpose is only to negotiate the desired voltage profile with the power supply to which they're attached. If the supply doesn't support USB PD, or if it does but doesn't support the requested voltage level, then it clearly isn't going to work. Equally, if a negotiation succeeds, it is the power supply that is entirely responsible for regulation of the agreed supply voltage and current. This device itself has no active power regulation or protection capabilities whatsoever - whatever is required in that regard must be an available feature of the USB supply that you use it with.Mine works without issue in conjunction with the 45watt port of an Anker PowerPort Atom III, with all of the voltage profiles that the Anker supports being available for selection (5v, 9v, 15v and 20v). Voltages are spot-on, as measured. Again, this being down to the Anker supply, not the PD cable.A very useful feature is that the voltage selection last made is retained on next power-on.

I ordered this multi DC barrel cable to charge a portable hoover and some other bits, like out strimmer battery. I hate having a ton of different AC bricks, and this adapter negates the need to dig these out and try and find the correct brick to charge. I really like the variable voltage which can be cycled using the in built button and LED display. The use of this adapter also allows me to charge DC-DC rather than AC-DC - i can now use my battery banks to charge my devices. Very happy! Highly recommended.

This does exactly what I wanted it to do - provide DC power at varying levels to various devices that otherwise want a wall wart, from a simple USB C PD supply. Excellent.I only wish the cable was a reasonable length -1.8m would be far more useful than the 0.9m provided.

The ability to choose the port and the energy consumption were the key for me!I have a handheld vacuum Vax Gator, that i use in my car, but having to bring home every time was a pain.Now with the adapter i just let the vacuum connect on my usb port and is always charger.A bonus point is when you set the energy it remembers the settings and stick with the value!!Worth every cent!!