140W USB C Laptop Charger，Fast PD3.1 GaN 3Port Type C Charger Block，Wall Charger AC Power Adapter ASUS ROG Lenovo ACER HP DELL MacBook Pro/Air and More，Chromebook/Gaming Laptop Power Supply.

The Yoocas SYX140W3C 140W 3 port USB-c charger is a good value - especially when on sale ($20 in Sep 2024 - when I purchased it).One up-front caveat to this review - I don't have the equipment to get the charger to output 140W, but I was able to put enough load on the charger to get it to output a total of 110W as shown in the photo with the device charging a Dell laptop and a portable power brick.A comment on the Dell laptop charging: the laptop has a Dell-branded power brick that charges at up to 130W. However the Dell system uses amperage up to 6.5A at 20V to reach that wattage. The USB-PD 3.1 specification only allows using up to 5A so to get 140W with USB-PD 3.1 the device being charged needs to request 28V at 5A to get that 140W. Since the Dell laptop will only go up to 20V, the most it will get from a USB-PD 3.1 charger is 100W (20V at 5A).The photos I've attached show that when I have the Dell and a portable battery power brick being charged, the charger is outputting 110W total (93W to the Dell and 17W to the battery). I'm confident that the charger would supply 140W to a device that asks for it at 28V (if a cable that supports it is in use). But I don't have the equipment to actually demonstrate it.I did test that the charger will supply to top wattage on any of the 3 USB-C ports, so you don't need to make sure your laptop is using a particular port.There are two things that I think might be a concern to potential buyers depending on your needs:1) the more wattage a charger puts out, the more heat it's going to generate (that's just physics). This unit gets quite hot when outputting 110W - I measured 65C (about 150F). That is too hot for me to hold onto the charger for more than several seconds. However, I posted a portion of a table from a standards document about "Touch temperature limits" for electronic devices. That table indicates that it's acceptable for an electronic device to get up to 77C (or even 94C if the touch will be under 1 second). So I think that technically the charger is within acceptable limits, but if you are going to be using it to charge more than 100W or so you should do so in an environment that it won't be touched (particularly by children) and that any material close to the charger can deal with any ambient heat.2) the charger weighs about 8oz (230g) and is considerably larger than another Yoocas charger I have (a 65W model). It's small enough to travel with, but might be more than some people would want to carry around. On the other hand, it's much smaller than the brick my laptop came with.Right now (early Sep 2024) the charger is on sale for $20. If the two caveats I mention are acceptable, $20 is a very good deal for a 140W capable charger - especially one that you don't need to be concerned with which device goes to which port. The charger will route the top wattage to the device that requests the most.

Poor quality and lasted only three months!!

I’ve had this product for almost a year and have not had any issues with it. I get daily usage out of the charger. Plenty of power to charge my phone, laptop, headphones at the same time. I would recommend using a high quality USB-C cord for charging.

This charger delivers what it promises and allows you to charge 2 laptops at 20v/3.25A at the same time (or 20v/5A, 100w) if you are charging under 20v. Unless you have a device that can request more than 20v under PD 3.1, you won't be able to utilize wattages over 100w.The price is great for what you get, although there are a few reasons why I gave this a 3-star rating:1. This charger weighs 8.2 oz (a bit over 1/2 pound) and is somewhat bulky. This may be expected for this amount of wattage, although there is nothing included in the package that allows you to secure the charger to the wall (given the weight). This means if you have older outlets that are not as secure, the charger is likely going to fall right out of the slots. The package also does not include a slotted extension cord for the prongs, even though it was designed in such a way to accept such an adapter.2. The adapter does not have an energy efficiency rating on it, which may be questionable. The US requires all manufacturers to produce power adapters meeting Level VI efficiency levels, which means the maximum draw of the adapter should not exceed 0.3w when it is not in use. This adapter, on the other hand, almost exceeds this value by 2x. While this may not matter too much in the grander scheme, it begs the question of what kind of electronics is inside the charger, and whether GaN is even being used.3. The adapter lacks a USB-A port, which means legacy devices cannot be charged without a USB-A to USB-C OTG adapter (again, not included).4. The box comes with a 1.5m (slightly under 5 ft) of a charging cable. This is a bit short for a charging cable that needs to go up the desk and then back around. A 2m (6.6ft) is probably more appropriate for this application, which may mean that you may need to buy a separate cable if you don't already have one that you know would work.5. The cable has good resistance values (126 mOhms over 1.5m) and has a built-in eMarker chip claiming that it can support 20v/5A. This is intriguing because chargers supporting >20v charging generally would not come with cables that have the eMarker chip capping it at 20v (e.g. 50v/5A). In addition, the eMarker claims that this is a USB 3.2 Gen2 cable, which means it can support up to 10Gbps of data transfer. However, the declaration is actually false, and the pins on this cable are actually not connected such that only USB 2.0 speeds are supported (480Mbps).

People complaining about the charger becoming warm or hot need to understand it’s much more preferable to have the charger get hot instead of the device. It’s much better for your device’s battery to not get hot and for the charger to get hot and also your wallet by not needing to replace the batteries in your gadgets but yes pushing 140W through a small compact charger is going to cause heat. It’s much preferable to have a $30 charger get “hot” than to wear down the batteries in things and pay more to get them swapped. With that being said, this is smaller than the MacBook Pro’s charger, it does throw out 140W according to the stats app and the black cover matches the black cable nicely. All in all a good deal.

Seems to work fine

Had this charger for about 3 or 4 months or so. Not extreme use. Suppose to charge at least 3 devices at one. Today I was charging 2 devices. Then I noticed it wasn't charging anymore. The charger block was hot to touch. Unplugged it to cool down. Now it's just a paper wight. No use what so ever. Understand you get what you pay for. But should have lasted a year or at least a have year, even tho was close to the half mark. But if anyone wants a long lasting and convenient fast charging block. This isn't it. Maybe just mine was faulty. They keep the warranty replacement windows a short time for a reason.

Wow way fast change I like it ❤️