For a list of all currently documented Ralink chipsets with specifications, see Ralink.
Wireless-N300 USB Adapter
Per ASUS's driver source for this device, it's using RT5372.
The USB ID for this device would appear to be 0b05:17e8.
Review of Linux Compatibility
Asus USB-N14 is a WiFi USB stick, which is equipped with 5dBi antennas
- and supports connections according to 802.11n standard.
The stick has the USB ID 0b05:17e8:
Bus 006 Device 005: ID 0b05:17e8 ASUSTek Computer, Inc.
- and bases on the Ralink RT5372 chipset.
The stick is recognized by the Linux kernel:
usb 6-2: new high-speed USB device number 4 using ehci-pci usb 6-2: New USB device found, idVendor=0b05, idProduct=17e8 usb 6-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 6-2: Product: 802.11 n WLAN usb 6-2: Manufacturer: Ralink usb 6-2: SerialNumber: 1.0
- but not automatically supported (see list of devices supported by the rt2800usb driver).
However, Asus provides a Linux driver for download.