Huawei E5577Bs-937 Band Specification. Support external antenna(Buy Huawei E5577 external antenna from below the link). WiFi IEEE 802.11b/g/n. 4G FDD Band 1/2/3/4/5/8/19 & TDD Band 38/39/40/41. Supporting Windows XP SP3, Windows Vista SP1/SP2, Windows 7, Windows 8, Windows 8.1 (does not support Windows RT) and Mac OS X 10.7, 10.8 and 10.9 with latest upgrades.
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