ZTE MF821D
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| Description: | Modem type: GSM/3G/4G, connection interface: USB, network support: 2G, 3G, version: external |
| Additional Information: | MicroSD memory card slot, SMS, USSD support |
| Execution: | External |
| Connection interface: | USB |
| Modem type: | GSM/3G/4G |
| Network support: | 2G, 3G |