Power Supply Messing Up Usb Switching Pull Down

I bought this because I wanted to see if a better, quieter, switching power supply would improve the sound of my sonos port feeding into an external DAC. I had read that cheaper switching power supplies can create a lot of noise. I tried it and noticed better dynamic range and quieter noise floor. For me, it works well. I suspect that for others, it will depend on what type of device it is being attached to.

Works great. Requires a USB power supply (not included).

With everything switching over to USB-C, these are handy to have around.

It's a power supply.

Saves battery switching. This is my second one. The old one, maybe 8 years old, was starting to pull apart.

Cable is fine, but there are NO 'Down' Escalators (only 'Up'). Getting Cable is easy, getting to first-floor, very/very difficult!

CAME WITH MOUNTING SCREWS AND WORKS PERFECTLY! MOUNT ALLOWS MOVEMENT UP AND DOWN AS WELL AS LEFT AND RIGHT PERFECT FOR MY STAGE SIDE MOUNTING SITUATION.

The knurled outer aspect of this line of Step-Up and Step-Down rings is an essential feature.

I found out this converter very useful, it support not only Cross/Up/Down converter, but also Analog to Digital converter since they have a video composite input. However, there is no Composite output, which means there is no Digital to Analog converting. I saw the other review that someone think it's also support D to A, but not at all.

I bought the i7 version with 32 gig of RAM. Build quality is excellent. Very lightweight for the performance. Runs cooler than any laptop I have ever owned. My one complaint is the lack of dedicated Page Up/Down Home and End keys. You have to press a function key in combination with one of the four cursor arrow keys to move up or down quickly. My 2020 HP Spectre X360 is almost exactly the same size as the Dragonfly, yet HP managed to fit dedicated Home, End and Page Up/Down keys on the keyboard. For a high end laptop like the Dragonfly, it's inexplicable that they could not fit dedicated versions of these four frequently used keys on the keyboard. Other than this one issue, the laptop is fast and a perfect travel companion. The built in full size HDMI port is a nice touch for connecting an external monitor or projector. The touchpad is responsive and accurate. Battery life is great so far. Despite my one complaint about the keyboard, I would buy it again, but for this price, one expects perfection, not almost perfection.