iGreely DC 5V to DC 9V USB Voltage Step Up Converter Cable 3.3ft/1m Power Supply Adapter Cable with DC Jack 5.5 x 2.5mm or 5.5 x 2.1mm, for Fan, Led Light, Wireless Router, Speakers and More Devices

Ottimo , qualità dei materiali buona . Lo consiglio

ممتاز لتشغيل الراوتر والرسيفر وغيره

So I tend to try to prepare for the worst case scenario and since I have some massive power banks. I figured if I could power my modem router in a power outage without using my generator this would be perfect. I purchased a asus router that I just keep around to connect to my phone mobile data to run my essentials during a power internet outage. Usb tethering making for a much more reliable service then just a Hotspot. Helping with streaming and keeping everyone from going crazy on me. If this is your way of thinking this will work for the said application.

Nice units, They don't feel like they will fall apart anytime soon as some alternative devices I looked at reviews of are reported to. The 5.5 2.1 to 2.5 plug adapter is a nicely made unit too and in my head it's worth a £1 or 2 on its own ! I bought 4 of these so I hope that counts as a reasonable sample to test. I did see a small variation in maximum power output between them on test but nothing too bad. Looking at the figures for the 'least powerful' of them (obviously others test methods and results may vary etc etc ) they produced about 9.25Volts (highest 9.35) without load and all stayed above 9V as the load was applied and increased to 0.5A After that I saw 8.4V (still fine for many 9V devices) with 0.6A drawn and then down to 7.3 V with 0.73A drawn. For the very best of my 4 units the final result was 7.7V with 0.78A drawn (with 5.08V @ 1.48A going in) I didn't take it further but I did leave the least powerful one delivering 0.73A for 3 minutes with no significant noise or heat building in that time. So this works well for producing 9V up to around 0.5A (500mA) and with a good bit left in reserve for heavy initial current in lights /chargers etc. For what they are and the excellent price I'd say these are a useful problem solver for things like device chargoing in the car etc

worked well - now run an outside controller off a USB (PD) battery instead of Mains adapter - much better.