WM-G-MR-09 Marvell8686 5V / 3.3V Wi-Fi Module - Deep Blue
On board WM-G-MR-09(Marvell8686) module; Supports IEEE 802.11b/g; Support SDIO external interface; All pin are led out; Supports 5V / 3.3V voltage input; On board LDO power chip; On board SMD ceramic antenna; With spare IPX position.