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Introduction

The ZTE USB modem is a multi-mode USB modem, working in LTE FDD/UMTS/EDGE/GSM networks. 

With USB interface connecting to a laptop or a desktop PC, it integrates the functionality of a modem 

and a mobile phone (SMS), and combines mobile communication with Internet perfectly. It supports 

data and SMS services through the mobile phone network, enabling you to communicate anytime and 

anywhere.

Specification

The following table shows the specification of your device.

Interface Type

USB 2.0 HIGH SPEED

Systems supported

Supports most types of laptop and desktop PC.

Operating systems supported Windows XP, Vista, Windows 7             

MAC 10.5, 10.6, 10.7,

Functions

SMS service, Data service, Applications management, etc.

Network Standards

LTE FDD/UMTS/EDGE/GSM

Transmission speed (Max)

LTE-FDD: 100Mbps DL, 50Mbps UL 

HSUPA: 5.76Mbps UL, HSDPA: 42Mb/s DL

WCDMA PS: UL 384kbps, DL 384kbps

Temperature

Storage: -40°C ~ +80°C
Operation:-10°C ~ +45°C

Dimension

87.3mm×29.5mm×14mm

microSD  capability

Support up to 32GB microSD card

Notes:
microSD 

 is a trademark of SD Card Association.

Getting to know your device

The following figure shows the appearance of the MF821D . It is only for your reference. The actual 

product may be different.

1.   USB Connector 

2.   Front Cover

3.   Indicator 

4.   microSD card slot

5.   (U)SIM card slot

Hardware Installation

1.   Slide the front cover and remove it.   

Notes: Do not open the front cover rudely so as to avoid the damage of the front cover. 

LTE USB Modem
Quick Guide

MF821D

ZTE CORPORATION 

NO. 55, Hi-tech Road South, ShenZhen, P.R.China    

Postcode: 518057 

LEGAL INFORMATION

Copyright © 2012 ZTE CORPORATION.

All rights reserved.
No part of this publication may be excerpted, reproduced, translated or utilized in any form or by 

any means, electronic or mechanical, including photocopying and microfilm, without the prior written 

permission of ZTE Corporation.

The manual is published by ZTE Corporation. We reserve the right to make modifications on print errors 

or update specifications without prior notice.

Version No.: R1.0

Date: April 2012

Manual No.: 079584504500

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