For a list of all currently documented Ralink chipsets with specifications, see Ralink.
Guillemot Hercules HWDB-600
Availability: not in the US
Connector: Male A
Form factor tags: dongle
Hercules Dual Band WiFi USB Key
Product page (UK)
The USB ID for this product is found in ZyXEL's driver set for the ZyXEL NWD6505.