[GSD-503v5] How can I recognize the GSD-503 version 4 and version 5?
1.V4: No power on / off button at rear panel.
V5: One power on / off button at rear panel.
2.Check the serial number from FCC label that located on bottom of GSD-503.
1.V4: No power on / off button at rear panel.
V5: One power on / off button at rear panel.
2.Check the serial number from FCC label that located on bottom of GSD-503.
