Part number : MT7601U
Functions : 802.11 b/g/n single chip
Package information : QFN 40 Pin type
Manufacturer : MediaTek
Top Marking : MTK MT7601UN
The MT7601U is a highly integrated Wi-Fi single chip which supports 150 Mbps PHY rate. It fully complies with IEEE 802.11n and IEEE 802.11 b/g standards, offering feature-rich wireless connectivity at high standards, and delivering reliable, cost-effective throughput from an extended distance.
Optimized RF architecture and baseband algorithms provide superb performance and low power consumption. Intelligent MAC design deploys a high efficient DMA engine and hardware data processing accelerators which offloads the host processor.
The MT7601U is designed to support standard based features in the areas of security, quality of service and international regulations, giving end users the greatest performance any time and in any circumstance.
2. Issue with MT7601U usb dongle wifi driver
( http://raspberrypi.stackexchange.com/questions/27173/issue-with-mt7601u-usb-dongle-wifi-driver )