Amazon.com: DSYJ DSYJ-D0000101 Micro USB Host OTG Cable with Micro USB Power for Nexus 4 Nexus 7 Galaxy S Iii & Galaxy Nexus 0.65ft 1Pcs Black : Cell Phones & Accessories
USB OTG Host Cable MicroB OTG male to A female
Digital Pianos/Digital Keyboards: What is the difference between USB “TO DEVICE” and “TO HOST” ports?
Amazon.com: Inovat Replacement 10FT USB A Male to B Male Cable Cord Data Transfer Host Cable Cord for Yamaha P115 P-115 88-Key Digital Piano : Electronics
Yamaha UD-BT01 Wireless Bluetooth USB to Host MIDI Adapter | Sweetwater
USB Host Switching Cable - Mini Mechanical KVM : ID 4844 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB Host Shield Library, For Connecing Other USB Devices
Plugable USB 3.0 Dual Monitor Horizontal Docking Station – Plugable Technologies
USB Isolator (Industrial) – CommFront
CME WIDI Uhost (with shown cables)
USB 2.0 Host-to-Host Cable -- DataPro
USB On-The-Go - Wikipedia
2 Pack Micro-USB Male to USB 2.0 Female Host OTG Adapter Cable for Nexus 7 - Walmart.com