100W USB C Fast Charger, KFD ADP-140A PD 140W GaN USB-C Power Adapter for ASUS Zenbook 14 OLED UX3402VA UX3404Z ZenBook Duo S Flip 14 S13 UX482EA UM425UAZ Asus ROG Flow Z13 2025 Gaming Laptop

Really well presented product with great flexibility.

Charger that charges super fast!! Love it. The charger has a very good build quality and is a power house! It is not very small, but considering the power it can deliver the size is ok. I honestly cannot complain since it still fits in my bottle pocket on the backpack. Amazing power that charges really quick. The charger is durable and quality is great. Have had no issues when using for long periods. I have a HP laptop, with no issues at all while using for the whole day. I did not notice the charger getting significantly heated up while connected for the entire day. It comes with a USB C cable which again is good quality and fast charging. But you need to make sure that the cables you buy are rated for the charger, cheaper cables will reduce charge speeds if they aren't rated for the wattage. Not all cables are of the same grade.This charger can deliver 140w. That’s the advantage with GaN (Gallium nitride) chargers which are more efficient than normal silicon-based chargers which are bulky and less efficient by producing lot of heat. It has only one USB C output which is a drawback. However, it has interchangeable connectors for plugging into different plugs which is useful while travelling abroad. It’s a very economic replacement option for original laptop chargers (Apple /HP / Asus/ Samsung etc). At 140 W capacity it can power most of the laptops / phones/ tablets etc. Its ability to plug indirectly to the wall is an added advantage as we can avoid one connecting cable!

I got this power supply because of its high power rating - 140W. I will be using it as a general duty charger and presume whatever I connect to it will choose to draw its own maximum permitted current.The rating label says:GaN 140W Power SupplyMODEL: RT15-5-140WINPUT: AC110-240V 50/60Hz 2A MaxOUTPUT DC:5.0V=3.0a 15W or9.0V=3.0A 27W or12.0V=3.0A 36.0W or15.0V=3.0A 45.0W or20.0V=5.0A 100W or28.0V=5.0A 140WSo it will cover everything from an iPhone to a powerful laptop.The design of this charger in no way mimics those made by Apple, except that the UK mains plug is removable and can be replaced with a figure-of-eight connector attached to a cable matching the power socket you are using. This makes it ideal for international travelling where chargers fitted with attached UK plugs are of limited use. A lead suitable for use in the UK is included with the charger and this alternative connection has the advantage over the attached plug that it is fitted with a 3A mains fuse to protect things from the 30A available from UK ring mains.The shiny sides of the charger are protected by a clear protective film indicating the care that has gone into its manufacture.The charger comes with a quality USB-C cable that is super flexible and insulated with what looks like silicone rubber. The cable has a chip which indicates is is rated at 50V 5A which is more than enough for this charger. It also says it is 0-1m in length, whereas it is actually 1.5m.The letters “GaN” emblazoned on the charger indicate it is made using Gallium Nitride semiconductors. These are presently more expensive than silicon, but offer the advantages of smaller size and lighter weight for an equivalent power output, exceeding the performance of silicon in speed, temperature and power handling. In this case the advantage doesn’t seem that great. The charger is slightly smaller than a standard 140W MacBook charger and slightly lighter, tipping the scales at 231g compared to 278g (17%).Checking the electrical properties of the charger showed the open circuit voltage was 5.12V and that this fell to 4.71V when supplying 3.0A with its own cable. This is quite good and only just outside the +/-5% tolerance for USB ports (4.75V to 5.25V).When connected to the mains the charger used 0.9W even though it wasn’t supplying any power. This isn’t much but left on 24/7 it represents 7.88kWh and will cost a pound or two per annum. In use the charger drew 17.6W when supplying 14.13W; a conversion efficiency of 80.28%.I used an FNB58 USB analyser to check the protocols available from the charger. See my pictures “Detection v1.3” and “PD Trigger 140W - green shows those that are available and red those that aren’t. I have seen chargers with more protocols than this one offers and it is only average in this regard.It would have been nice if the makers had taken the opportunity to add a few extra USB sockets, both A and C. The face of this device could have easily accommodated quite a few, but it fulfils its primary purpose of supplying whatever current is needed to one device and that is all that is claimed in the listing, so no loss of stars for what isn’t promised.Although it seems pernickety I have to mention that, when this charger is plugged into a UK wall socket, the lettering on the case is upside down and it looks silly. Other than that it is a good charger. The fact it can be powered from a figure-of-eight lead and used around the world along with the modest reduction in dimensions and weight from using the latest technology make it something I would recommend.

I have been using this to power a couple of laptops (ASUS, Dell) and phones (OnePlus) over the last few weeks, and it's hasn't had a problem supplying power to any of them.Only issue is that it will only "fast charge" my phone, not "ultra-fast charge" which other chargers can do. It's not a problem for me (I don't like to ultra-fast charge as it can damage the battery if done too often), but might indicate that this doesn't quite provide all the power outputs that it says. However, it will happily power and charge laptops which is what it says it can do.One rather neat feature is that it can convert between a "wall wart" (plug directly on the power supply) and having a cable (plug on the end of a lead). This gives the flexibility of something smaller to travel with vs having a long cable if your socket is a way from the desk. Should you lose the cable that it comes with then it takes a standard figure-eight power cable as well.It's fairly large compared to phone chargers, but maybe half the size of my laptop charger (and slightly lighter) so convenient to carry around.Note that it is a charger that "can charge ASUS laptops", not a charger "made by ASUS". Big difference and the listing title is a little misleading.

I'm using this charger with an Acasis USB-C docking system and it works perfectly.It powers the dock and gives all the passthrough power to devices connected to USB-A and USB-C ports, such as USB-C SSDs and USB flash drives. It even passes power through to the fast charge C port on the dock and it allows for full power charging to my iPads or iPhones that I have connected to the USB-C dock. I dare say that the charger also has power in reserve as I don't think I'm even using 70W when my USB-C is fully populated. Which I much prefer as I'd rather have any power supply operating below its maximum capacity.I would imagine that this power supply is going to be perfect for use with the Zenbooks etc. However, it is perfect for my USB-C dock.