LTE Dual-mode 4G Modem-ZTE MF880 VS MF825

More and more operators are investing the TD-LTE technology so as to improve the spectrum application efficiency. It seems the TDD technology would become the mainstream for LTE network. But We could also see the dual-mode LTE, that is FDD & TD-LTE combination, is also become popular.

 

 

To make the LTE dual-mode network more efficiency, the UEs must also support FDD and TDD bands simultaneously, and they could auto switch between the two modes. We have found there are many USB dongles, mobile WiFi hotspots and LTE router available for such networks.

 

 

As one of the important vendor for 4G LTE equipments, ZTE had released many models that can support TD-LTE/FDD dual-mode networks. ZTE MF880 and MF825 are such 4G USB dongles.

 

 

 

ZTE MF880 is the first generation 4G modem from ZTE. One of the main features for them is they don’t have the connector for MIMO external antennas. The body of the 4G modem is a little bit bigger than 3G modems. As a 4G dual-mode LTE modem, ZTE MF880 could support 4G FDD band 20 & band 7(800/2600MHz), and TD-LTE band 38 & band 40 (2300/2600MHz). Band 7 and band 20 are two most popular spectrums in European countries and the two TDD bands are the most commonly deployed broadband worldwide, which make ZTE MF880 4G data card one of the most popular 4G dongles.

 

 

ZTE MF825 is the typical model for the second generation of ZTE 4G modems. Based optimization and improve in hardware and firmware, the ZTE is much slimmer then it’s predecessors. And it’s not as big as ZTE MF880, and to make the MIMO transmission come true, two external antenna connectors are available in MF825. Besides the TDD band 38 & 40(2300/2600MHz), ZTE MF825 supports more FDD bands, they are band 20, band 3, band 1 & band 7(800/1800/2100/2600MHz). From the specification, we could know if ZTE MF880 could work in any place, ZTE MF825 would fully replace it.

 

 

 

What’s more, the two 4G dongles ZTE MF880 and MF825 could also work on 3G UMTS/DC-HSPA+ networks (900/2100MHz) and 2G GAM/GPRS networks, and the peak download speed on 3G could reach 42Mbps. So if user is in a location where 4G network is not available, the two ZTE 4G modems would switch to 3G to fulfill the Internet access requirement.

 

 

Someone may ask, if ZTE MF825 could fully replace MF880, then why they both are presented from operators? It’s a good question, actually, the more powerful one device is, and the more expensive it is. ZTE MF825 is more powerful based on its great internal chipset, and it costs more. For some operators, it’s unnecessary for them to use a modem with high price when a cheaper one could meet the requirements. And for some operators, they didn’t provide some of the network spectrums that ZTE MF825 supports.

 

But for users who usually travel overseas or to different countries, it would be better to get ZTE MF825, because it would be more possible for the data card to compatible with the target operators when on a trip.

 

To conclude, the LTE dual-mode 4G modems provide better solution for users to access Internet and travel around. If you want more TD-LTE/FDD USB modem, welcome to visit www.4gltemall.com .

 

What’s the difference between ZTE MF880 and ZTE MF820S2?

As one of the 4G LTE modems from ZTE, the TDD modem ZTE MF820s2 may not be well known because it’s born for China Mobile 4G LTE networks. ZTE MF820s2 looks very similar to ZTE MF820, they are using the same appearance module, but inner parts are completely different. ZTE MF820 is for FDD network while MF820s2 works for TDD & FDD.

 

 

There is another 4G TD-LTE modem ZTE MF880, which is also FDD compatible. Today, we will have a look at what’s the difference between ZTE MF820s2 and MF880.

 

 

Frequency Bands

 

 

Frequency band should be the key difference between similar 4G modems, even though some modems looks almost the same. The frequency band decides where could work or not, and which operators they could support. ZTE MF820s2 supports FDD 2600MHZ and TDD 1900/2300/2600MHz. The band 1900MHz is a special band that very operator has chose as their 4G network spectrum. So many other 4G modems could replace ZTE MF820s2 if the band 1900MHz is not a must frequency. ZTE MF880 could also support TDD 2300/2600 MHz, but it cannot work with band 1900MHz. As a TDD and FDD surfstick, ZTE MF880 also supports FDD800/2600MHz. So when users don’t require modem to support 1900Mhz, ZTE MF880 could fully replace MF820s2.

 

 

4G LTE Speed

 

 

As standard 4G USB modems, ZTE MF880 and MF820s2 both supports the TDD and FDD network. However, under the two technologies, the data transmission rates are different. When working on FDD network, the peak download speed could reach 100Mbps while upload speed up to 50Mbps. But if on TDD networks, maximum download speed could reach 68Mbps and upload speed could reach 17Mbps. By the way, the speeds are only theoretical speeds. In real practice, the network can’t be perfect as we wish; the link speeds may vary time to time.

 

 

 

External Antenna and MicroSD card

 

It’s a pity that both ZTE MF880 and MF820s2 both don’s have connector for external antenna. And we didn’t find any place to plug the MicroSD card. So they couldn’t use as flash memory card.

 

 

 

USB Design

 

ZTE MF880 and MF820 are both under design of 2D USB design. The USB is rotatable for 270 degrees. This design will help users to use more space when plug to PC.

 

 

We can’t make conclusion that which is better. They are in same brand and could meet different requirements from users or operators. So it would be better to know more about the difference between similar models. If you want to check more 4G LTE modems, welcome to land www.4gltemall.com

 

ZTE MF880 and MF820T 4G LTE TDD USB Modem

As one of the most important 4G vendors, ZTE has released many 4G LTE modems. ZTE MF820T and MF880 are two of the popular TDD models.

 

Just like other 4G LTE modems from ZTE, ZTE MF880 and MF820T followed the same design as ZTE MF820 4G LTE FDD Surf stick. The modem body is a little bit larger than usual 3G USB stick. And taking them in hand, users can feel the weight is more than 3G modems.

 

 

What is a pity that both ZTE MF820T and MF880 don’t have the connectors for external antenna. Perhaps at the big inning when engineer designed the mode, they didn’t take this factor into their blueprint. As we can see, in the serials of ZTE MF820D, MF821, MF821D, MF820S2, MF820T, MF880, they all incorporates no antenna ports. As the key features of MIMO connection, we are afraid it may not be as good as the modems with MIMO antenna for data transmission.

 

 

ZTE MF820T and MF880 both work for 4G LTE TDD network, perhaps due to for different providers, they support different TDD frequency bands as below:

 

 

ZTE MF820T 4G LTE TDD Single Mode USB Modem:

* Single mode LTE TDD 2300/2600MHz

 

ZTE MF880 4G FDD TDD USB Modem:

* FDD 800/2600MHz

* TDD 2300/2600MHz

* DC-HSPA+/HSPA+/HSPA/UMTS 2100/900MHz

* EDGE/GPRS/GSM 850/900/1800/1900MHz

 

 

This should the key difference between ZTE MF820T and MF880. Per current information, ZTE MF880 had need presented to public under provider “3” from UK. And ZTE MF820T should be for China Mobile. What should focus is that ZTE MF880 could also support FDD LTE band 800/2600MHz. It means MF880 could switch between FDD and TDD networks, so ZTE MF880 is somewhat like a enhanced ZTE MF820T.

 

 

 

Regarding the data transmission speed, they both support download speed at 68Mbps and upload at 17Mbps under TDD –LTE network. ZTE MF880 seems more powerful because when working at FDD network, the peak speed could reach to 100Mbps for downlink while uplink could reach 50Mbps.

 

In conclusion, ZTE MF880 seems more powerful than ZTE MF820T, so if you want to want buy ZTE 4G LTE TDD USB Modems, welcome to www.4gltemall.com

 

 

ZTE MF880 4G LTE FDD TDD Modem Review

ZTE had release many 4G modems, such as ZTE MF820, MF820D, MF821, MF821D, MF820T, MF820s2 and MF880 etc.. And many 4G mobile WiFi are available now on the market. Today, we get the ZTE MF880 4G Modem and we will show the details for readers. Hope you will know more about this modem ZTE MF880.

 

 

Logo and USB Interface

 

The ZTE MF880 is with logo “3”, which means it’s customized by the UK operator “3”.

 

 

Like ZTE MF820, ZTE MF880 also has a rotatable USB interface; the USB could be hidden in the body of the modem. And beside the logo, there is a small indicator in oval shape, which will help users to know more about the connection status.

 

 

Back

 

On the back, the model number MF880 is printed on this modem. With the model number, there is CE number, RoHS mark and below them is the IMEI number of this modem, which is on behalf of the modem’s ID. The IMEI number is printed on the back cover, unlike ZTE MF820, whose IMEI number is on a extra stick. And it also show the original produce place “Made in China”. ZTE also print its brand with this mark.

 

Inner Part

 

Beside the indicator, there is a little cap to open the back cover of ZTE MF880. But you may take effort to open. At this point, the modem is not user-friendly. The cover is very tight. After opened the modem, you can find the SIM card at the side of the body. But there is no slot for memory card. And it’s a pity that it also doesn’t have even one external antenna connector. In 4G LTE technology, the MIMO connection is one of the most important features for high speed data transmission.

 

 

Network bands

 

According to the official files from ZTE, the ZTE MF880 4G LTE Modem could support 4G LTE TDD and FDD bands as follows:

 

* LTE FDD DD800/2600 MHz

* LTE TDD 2300/2600MHz

* 3G UMTS 900/2100MHz

 

So unlocked ZTE MF880 could support all the operators who had launched Band 20, band 7, band 40 or band 38. ZTE MF880 should be one of the LTE modems which could support TDD and FDD simultaneously. If you want to buy unlocked ZTE MF880, welcome to land www.4gltemall.com .