Update README.md (#806)

* Update README.md

Changed DC to AC.

* Update README.md

Changed the verbiage for clarity.
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arch1mede 2022-08-23 13:13:08 -07:00 committed by GitHub
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@ -106,7 +106,7 @@ PiKVM supports several different hardware configurations, referred to as **platf
* Only for Raspberry Pi 4: parts for Y-splitter cable (**one variant at your choice**):
* <details><summary>❓ Why is this cable necessary?</summary>
On a Raspberry Pi only the USB port that receives power is capable of acting as a USB Device. The other USB ports are capable only of acting as USB Hosts. Therefore a special cable must be used on the USB power port that it can simultanously act as USB Device for the PC/server and receive external DC power.
On a Raspberry Pi only the USB port that receives power is capable of acting as a USB Device. The other USB ports are capable only of acting as USB Hosts. Therefore a special cable must be used on the USB power port that it can simultanously act as USB Device for the PC/server and receive external power from an official RPi adapter.
</details>
* <details><summary>:exclamation:Variant #1:exclamation:: (No mod solution - Amazon) Y cable with power blocker ends.</summary>