[1] MUST HAVE: ESSENTIAL FOR VOLCA SERIES! This addresses my singular grievance with the Volca Series units. I love all of Korg's analog synth stuff: the Re-Issues, the Non-Re-Issues. I think the Volca Series's value is unparalleled, taking into consideration the capabilities and versatility of the units themselves. They are totally portable and come equipped with batteries, but I would prefer they came with these instead. Buy this adapter, presuming you're tracking in some kind of home/studio setting. Small price to pay to not have to worry about whether or not your batteries are going to hold through whatever awesome groove you just came up with. Buy the adapter. You'll be glad you did.

[Black] I got tired of replacing batteries.

[1] I mean, personally I like running my Volca Beats on batteries when I can (because I have a million cords on my desk already), but nice to have this as a backup.

[Black] This product helps me battery power my audio recorder (Tascam DR-40) in a case using a pro battery. Everyone uses small mobile phone battery packs, but I didn't want to worry about that at all. It also helps me use a GoPro battery eliminator and power a GoPro for time lapses for more than a day. It's great, easy to use, highly recommended.

[Black] It works - never buy batteries for a Brother label maker again ...

[Black] Cool but a tad expensive concept. Allows you to charge a phone or operate a USB powered device right off a power tap. Does exactly what it says.

[Black] This power bank adapter by Smallrig is ALMOST the perfect solution. I wanted to find a way to mount my Anker 737 power bank to my gimbal so my camera doesn't run out of battery on long shoots and after a lot of research I found this one. The reason why I chose this one is because it uses a flexible strap to secure your power bank but the reason why I say "almost the perfect solution" is because I have to stretch the strap to the max to get my power bank on there. I understand this adapter isn't designed to hold large power banks which is why I still give a 5 star. So overall this adapter is the best solution if you're looking for one. Just know if you have a 2 inch thick power bank you'll most likely be able to put it on, you'll just have to stretch it to the max.

[1] Takes the output of an Anton Bauer battery (or other D-Tap/P-Tap compatible battery) and powers my USB devices as stated. Mostly using the two I bought to power a Nyrius Aries Pro HDMI transmitter and receiver for a director's monitor, but I have also used it to charge iPhones and iPads with no problem. Seems pricey for what it is, but it works great.

[1] Going to purchase a few more for my other Volcas :-) really great to have, very long cord, very sturdy,

[1] Works great on the Volca, it works well on the Monologue, but is a little long. Buying another one.