D-Link DIR-850L rev B1

Silkscreen notes

 * "WRGAC25" and "8WRGAC25.2A1G" is silkscreened on the main board
 * "WRGAC25 REV-A1"

Links of Interest
Product Page Firmware (StarHub Singapore)

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Images
- Teardown & Serial Pinout on OpenWRT Forums

Pictures
Retail Images