15cm 65W PD USB Type C Female Input to Slim Tip Power Charging Cable for Lenovo Thinkpad E440 E450 E550 E560 T430 T440 T440S Lenovo Yoga 13 Yoga 11S(Square s)

Excelente

I have some new Lenovos, 730s that use the USB C power adapter, 65 watts. I bought some older Thinkpads that use the older adapter. It works PERFECT. I didnt need to buy new power adapters.

Charges my Lenovo as intended to

It does what it says it does but the quality isn't the greatest. I really is difficult to connect and disconnect from my cables, it feels a bit cheap, and it seems to really struggle to stay consistently at 65W. Would recommend looking for a 100W option if you can find one because the inconsistency can cause your laptop to freak out while charging. But overall, it still does the job about 80-90% of the time and the price is good enough for quick and dirty use that I can't be too mad.

The lenovo plug has a 560 ohm resistor on it. This means the notebook will expect that the power supply can provide 90 watts. The Type-C negotiation is only for 60 watts. If your laptop tries to use full current, your power supply might shut off unexpectedly. If it's a poorly-designed power supply then it might be damaged. A good one will survive. It's still annoying and wrong.

This little adapter does what it promises to do: it connects my thinkpad to a usb-c charging cable.

Works great in an older yoga 11s!

Wanted this to work. It does not for my computer. That’s powering it with a 65 watt Anker charger.

The biggest advantage is convenience. If you already use a USB-C PD charger, this little adapter lets you ditch Lenovo’s bulky proprietary power brick. The 15cm length keeps things compact, making it great for travel or a minimalist desk setup. It’s especially handy if you already carry a GaN USB-C charger for your phone or tablet. Performance-wise, it works well for supported Lenovo laptops that use Slim Tip charging and stay within the 65W limit. Charging is stable in normal use like browsing, documents, and light workloads. I didn’t notice any random disconnects or overheating during regular charging sessions.

This adaptor works great. Bought it for my docking station and it worked perfectly! Affordable too

Working great - works as listed

Works correctly on my thinkpad x240

You'll find my reviews on a number of these CERRXIAN USB C to slim tip converters, I will just copy-paste the text between them adjusting for the device as necessary. The slim tip chargers use a resistor between the signal pin and the outer shell to tell the laptop how many watts it can draw. The voltage is always 20V. Thus, a USB C to slim tip adapter needs to do the following two things: 1) contain an appropriate signal resistor (45W: 120 Ω, 65W: 280 Ω, 90W 550 Ω) 2) negotiate with the charger and if the wattage signaled with the resistor is available, then provide 20V output. Let's start with the Lenovo 4X90U45346 as an example because it is obviously (?) behaving correctly: there's a 120Ω signal resistor for the 45W. When plugged into a 45W or higher charger port, it correctly puts 20V on the line and when plugged into a port capable of less then it just doesn't. This device: 1) is advertised for 65W but the resistor is for 90W 2) as you can see on the photo when this device is plugged into either a 30W or a 60W port it is putting 20V on the line (this charger is USB IF certified, has a fixed 60W and a fixed 30W port, very convenient for testing). Even wIthout further testing on heat, stability and so forth I can not recommend this because the moment someone plugs it into a less-than-90W USB C charger then you are at risk of overdrawing your USB C charger, potentially heavily so. While quality USB C chargers obviously have overcurrent protection, this is still a bad idea especially because USB C is a negotiated protocol and so massive overdrawing is not supposed to happen. On this device specifically since it is advertised for 65W the chances are real good people will use it with a non-eMark USB C cable which is only capable of 60W and a similar charger. But if the laptop is capable of drawing 90W, this will not only overdraw the charger but the cable as well! This warrants a one star review in comparison to the two star reviews on other similar products from this manufacturer.