SinLoon PD DC 7.4mm x 5.0mm Female(7.4mm x 0.6mm)Input to USB Type C Male Power Charging Cable, DC7450 to Type C Extension Cable with PD Automatic Identification Chip,for Phones,Tablets,Laptops(Blue)

It seems to work on Dell Latitude 5440. I tried with a 120W Dell power supply, a 130W Dell power supply, and even a real old 65W Dell power supply. The literature says you should not use it with anything less than a 100W power supply but it seems to be working (although it may eventually overheat the 65W). All Dell power bricks source 19.5 regardless of the Power rating of the brick. The USB C Dell Brick that came with the latitude says it is a 100W with a 20V source. So i doubt this little dongle thing is actually stepping up the voltage from 19.5 to 20V but i guess it is close enough to charge the laptop. I am a little surprised it is not even giving a warning about a "weak charger detected, charging will be at a reduced rate". There must be a spoofing chip that is still forcing the fast charge. Honestly i would rather it went slow charge but i tested by going for 90% charge to 97% charge in 7min and neither the 65W dell brick nor the dongle adapter got hot. The brick was slightly above room temp warm.

It’s working flawlessly and charge any laptop/powerbank that we have.

I've been using it for a while and no issues at all.

Just got a new Dell Pro Max 16 Plus MB16250 which comes with a 280W USB-C charger. I wanted a spare for occasional use and had buckets of old Dell 130-180W chargers from old deployments. The MB16250 requires a minimum of 100W PD to even charge slowly. You can buy a new 100W charger for under $20 but no idea how long it will last for and you know the Dell charger is indestructible. So this cuts down on e-waste and should be reliable. The laptop detected it as a 100W PD source and said it would charge slowly, but that is exactly as I expected. Tired it with a 130W and 180W dell charger and it worked perfectly with both.

Stopped working after a month