"Test everything! The USB Killer adaptor kit allows you to test against Lightning, USB-C & MicroUSB devices.
These are no ordinary adaptors: Engineered to bypass all authentication checks, these adaptors are tested working against previously protected devices.
Lightning devices, such as the iPhone 5, 6 & 7 have been notoriously difficult to test, as each Lightning cable contains a special authentication chip.
We developed a Lightning adaptor that bypasses the authentication checks, and can immediately deliver an USB Surge attack to any lightning device!
USB-C devices can also use authentication, but with the USBKill.com USB-C adaptor, you can test against a large variety of devices."
https://www.usbkill.com/usb-killer/10-usb-kill-adaptor-kit.html
I read it. The better way to read their advertising puffery than "Test everything!" is "Try to kill everything!"
There is no need to make a piece of test equipment disguised as a USB memory stick and the fact they manufacture these also in an unmarked and unlabeled version as well, shows that these are intended to be used maliciously, not as a piece of test equipment. Everyone who has look critically at this product comes to the same conclusion. There are other ways to test your USB ports, adaptors, cables, etc., than a self-contained USB killer device such as this that will kill the device it is plugged in to.
This verbiage is called "cover your ass" legal smoke. The maker put it in there so they have plausible deniability when they are sued by people damaged by what they will characterize as "customers misusing our test product." They will point to that smoke screen and cry out "See! We are selling a very useful piece of test equipment!" Again note their own words ". . . can immediately deliver an USB Surge attack to any lightning device"! They condemn their own product with their own words. (Emphasis mine.)
Note their own "Conditions of Sale," which is more cover your ass verbiage:
Sale of equipment from USBKill.com is subject to terms and conditions.
Purchase of product is express acknowledgement and acceptance of the terms and conditions.NO SALE TO MINORS
Our products are specialised test devices that generate high voltage. They are not toys, and are not available to users under 18 years of age (or applicable legal age based on the customer's geographical location)NO MALICIOUS USE
Our devices are intended for ESD testing. Testing is intended for use on equipment owned by the user, or equipment whose owner has given express permission for testing.USBKill.com is not responsible for malicious use or willful destruction of equipment.
TERMS AND CONDITIONS OF SALE
Full terms and conditions of sale are available here:
https://www.usbkill.com/content/5-terms-and-conditions
These terms are legally binding with the conclusion of your purchase.
Note they claim they won't sell to minors, but there is no legitimate test during the sale to prove the purchaser is an adult.
The claim that their new device can get around Apple's sophisticated authentication chip is just more smoke. . . unless their device is registered with Apple they are STEALING the authentication from some other legitimate Made For Apple certified developer, because Apple is certainly not going to certify a maker whose product is intended to destroy Apple products. MFA certification is only necessary for a legitimate developer.
However, such an authentication chip is not what I was referring to when I commented that Apple has their devices protected. They use the same type of circuitry in their iPhones and iPads that they use in their iMacs to protect those computers, only miniaturized. The authenticate chip is not part of that surge protection. It IS possible that a large enough Surge of voltage and amperage could still arc across the small traces on a micro-circuit board.
They may be able to charge their device by getting around the authentication chip, but it is unlikely the surge will get through to kill the device. It is, however, likely to kill the authentication chip, which will then kill the cable.
Incidentally, the other way I know they are lying is that the easy way for such a business to get around the authentication chip is to build their own adaptor that connects direct from the KillUSB to the lightning port without the chip, which is built into the cables. Merely use the lightning adaptor connector without the chip, tap the voltage to charge the capacitors, and then send in the surge. Voila, kill accomplished, if that were the thing blocking doing it. From what I see, that is what they have done. . . and the claims of a special engineering is bogus.
They don't need to engineer around the chip for what they are attempting. All anyone would need is to have the adaptor, if it would work. They are just trying to extract an additional 14.99 Euros out of the customers to buy a straight through adaptor.