I don't think the midi connection has any power. The midi-to-usb cable I bought off of Ebay is powered by the USB port on the laptop. The cable has a little hardware attached to it (in the middle) that has 2 lights on it. The lights are lit when connected to the laptop but are off when only connected to the piano. I assume that means no power.
You may find a USB hub that can accomplish what you are trying to do but I'm not sure. To me getting a refurbished laptop that comes with a wireless card for $350 is the way to go. I have bought over 15 laptops for myself and my family from this guy on Ebay:
--- On Wed, 5/6/09, lowdebt4me wrote:
From: lowdebt4me
Subject: [disklavier] Wireless Conneection. Mark III to desktop PC?
To: disklavier@yahoogroups.com
Date: Wednesday, May 6, 2009, 8:27 AM
I'd like to connect my Mark III disklavier wirelessly to my desktop computer (they are located in different rooms). My compuer is bluetooth-enabled. Would it be possible to connect a MIDI-to-USB cable to the back of the Disklavier, attach a Bluetooth USB dongle to the cable, and achieve a wireless connection with my computer?
If so, I would use Van Basco to "stream" MIDI files to the Disklavier.
Does anyone know if this will work? Does the MIDI connectors to the back of the Disklavier put out an electrical charge sufficient to power the Bluetooth dongle, or would I need a self-powere Bluetooth dongle? Finally, I've read quite a bit about suceessfully attaching a Bluetooth dongle to a computer to connect to Bluetooth-enabled devices, but I haven't read of using a Bluetooth dongle to connect a non-Bluetooth device to a Bluetooth-enabled computer (such as connecting a printer).
Does anyone know if this will work?
Thanks in advance!