USB C Extension Adapter, 2Pack 40Gbps Transparent USB C Converter Power Meter Tester with LED Digital Display,PD 240W USB Type C Male to Female Adapter Connector for iPhone 15/16 Series

Good quality shows charging speed works well has a great connectivity and shows what the amps are in real time cause alote of chargers lie about output and a great value for the money

The Type C side is a bit short. It needs to be longer to work on phones with protective cases on them.

Very handy device to have on hand. Good for figuring out what chargers and cables are putting out and weeding out the weak ones. Very easy to use, a bit hard to read if you can’t find your glasses, but a great tool. Also, it does not appear to affect charging speed while in use, so no penalty for knowing what is going on.

I use these all the time on my USB-C cables to verify they are charging my widgets

Cannot fully endorse this product. Seems to works as advertised, however, I have difficulty reading the display. could do with some documentation describing exactly what to expect in the display otw its just plug and play.

This product is a simple, straight adapter with a USB-C Male connector on one end and a USB-C Female connector on the other. In between the two connectors is where the Magic happens. In that section of the adapter is an LED read-out display that will automatically display the Volts, Amps, and Watts passing through the connector at any particular point in time. The adapter has a clear polymer cover over the center section so that the user may see the small circuit board contained therein. The circuit board is the host for the 3-digit LED display device and the chips and other components necessary to accomplish the Magic. The LED display device will individually display the Voltage, Amperage, and the Watts that are passing through the device at any particular time. The units being displayed are identified by a “V”, “A”, or “W” to the right of the numerical portion of the display. The values displayed are in order of Volts, Amps, and finally Watts and then the display starts again. I have observed that the Volts data and the Amps data are each displayed for about 3 seconds each and then the Watts data is displayed for about seven seconds before returning to the Volts data display. The device is compliant with the Power Delivery 3.1 (PD 3.1) charging protocol. It is capable of transferring power at a rate of up to 240 watts. The data transfer rate is up to 40 Gbps and it is compliant with the USB 4.0 Standard. The adapter is UHD capable and it supports video resolutions of 8K@60hz, 5K@60Hz, and 4K@60Hz when used to connect to an external display. I really like this product. It gives me information about the device I am using and is very useful when charging Lithium-ion batteries. It is also useful when determining exactly what charging protocol is being utilized as the voltage and amperage is displayed. The Magic is just wonderful.

Following receipt and testing of these four Benaces “Extension Adapters” (with what to me appeared to be strange behavior), I had the following bizarre “conversation” with Benaces after requesting clarification on what constitutes “normal behavior” for these devices: Amazon.com: Your Conversation with Benaces: Wednesday, February 4, 2026 10:24 AM – from Steve Folks, I just received my order of four of these USB-C to USB-C adapters with digital readout of (purportedly) Volts / Amps / Watts. When I plug these in to to some devices, they work perfectly (showing V / A / Watts), but on other devices they show only Volts and Amps (i.e., switching back and forth between "V" and "A" – but never showing Watts). Is this normal? If it is, please explain under what conditions all three (V / A / W) are displayed – and under what conditions only Volts and Amps are shown. Thanks. Wednesday, February 4, 2026 3:59 PM – from Benaces It can detect the working status of USB C converter in real time, and automatically switch the LED digital display A/V/W. Thursday, February 5, 2026 5:41 AM – from Steve This does not at all answer my question. The devices on which I installed the adapter are all charging properly – but on one of them I see only Volts and Amps, while on the other I see all three (i.e., Volts, Amps, AND Watts). Why is that? Is that normal? If it is "normal behavior," I asked for an explanation of under what conditions the adapter shows (ONLY) Volts and Amps --- and under what other conditions the adapter shows all three (i.e., Volts, Amps, AND Watts). If this is NOT normal behavior, and the adapters I received are defective, I would want to return the ones I received for replacement. Thursday, February 5, 2026 7:39 PM – from Benaces Hi Dear, I have given you refund. Wish you a wonderful time! From Amazon.com: Did this resolve your question? From Steve Ferris: No. From Amazon.com: Thank you for your feedback! Please message the seller and tell them why your issue is not resolved. From Steve Ferris: Friday February 6, 2026 5:06 AM Folks, I did not ask for, nor did I want – a "refund." I just wanted an answer to a very basic question about what constitutes "normal behavior" for these devices. Is there some reason why you cannot simply address the question with a relevant reply? Failing an actual answer to my question, I will simply copy / paste my question and your (non) answers in an Amazon review. Thanks. From Amazon.com: Message received and being processed. ------------- Late this same day (i.e., 10:08 PM on Friday, February 6, 2026) I received notification from Amazon.com that the seller, based on NO request from me, had refunded my purchase amount. I was never asking for that: I simply wanted to understand if my experience with these "Extension Adapters" was normal. Why the seller seemed unable to respond with a relevant reply - escapes me. No further reply to my email just above has been received – so leaving the review I promised.

This little USB-C male - female multimeter is great for telling if and how well your devices are charging. It automatically cycles between volts, amps and watts. It agrees with my other USB multimeter and my laptops internal sensors charging statistics within a margin of +-5% based on limited testing. I would prefer a button to allow manual selection is my only real complaint. The way I have it plugged it in, in the video should be avoided for prolonged periods as it puts undue stress on the port due to leverage. I would generally recommend attaching this to the lower cost of two devices normally the charger in most cases. I did not notice any data transfer issues and by all rights it should be passthrough and not active. This appears to be the case, and it is not detected as a device in windows. Based on it being clear and my familiarity with most of the internal components I would say this probably poses an extremely small risk from a cyber security standpoint. Being that it's passthrough it should not be detected on corporate networks though you should still follow your companies guidelines on peripherals this product would normally fall under a charging adapter category. They are dirt cheap, well-constructed and work as advertised: over all a good product that would have been perfect with a selector button.