D-Link offers a slightly different router than usual because it can use a SIM card named DWR-921.

As one of the main players working in ne2rk devices, D-Link always presents a line of products that can meet all the diverse needs of consumers. Likewise with DWR-921 to ensure consumers can continue to be connected to the internet.

The D-Link DWR-921 certainly reminds us of Mobile WiFi devices or better known as MiFi which also uses a SIM card to be able to provide internet connection to several devices anytime and anywhere in a portable way.

Then what’s the difference? Following is a review of D-Link DWR-921 from MyBestDeal.

Design Like a Standard Router

DWR-921 has a look that is not much different from router devices in general, but the size is somewhat smaller. There are 2 detachable antennas on the back so that the signal is stronger and remains easy to replace or carry.

D-Link DWR-921 Design

This one router has a design that reminds me of Oreo snacks with a combination of glossy black which flanks the white in the middle. The material is made entirely of plastic so it feels light and only weighs 500 grams.

All ports for connectivity needs are also on the back of the router. These ports include four LAN ports, one WAN port, SIM Card port, AC Power Input, and the Power button. Really similar to what is usually found on public routers.

D-Link DWR-921 Port

For the front there is a very complete indicator light starting from the signal strength indicator, WLAN, each LAN port, SMS, 3G signal and 4G signal. Besides that there is also a WPS button to make it easier for the device to connect and a reset button if you want to restore all router settings.

D-Link DWR-921 Indicator


Ventilation holes are on the left and right of the router, this makes it more difficult to enter the dust than a router that has a vent at the top.

Very Easy Installation

As with other D-Link devices that I have tried, the initial preparation to be used is very easy. First, the 2 antennas must be installed first because from the purchase package is not directly installed.

Next, connect the Power Adapter to the router and power plug to be able to get a power source, unlike MiFi which has a battery in it. If everything is ready then the user just chooses to use the SIM card, via the WAN port to connect to the internet, or both.

D-Link DWR-921 Completeness

The DWR-921 supports a large SIM card so if you have microSIM or nanoSIM then you need an adapter. Make sure the SIM card is installed before turning on the router because when I test installing it after it turns on, the SIM card ne2rk takes longer to detect.

For the WAN port option, D-Link provides an Ethernet cable in the sales package to connect the DWR-921 to the main modem like a normal router for internet access.

If it’s all ready, then you just turn on the DWR-921 by pressing the power button on the back. Later, you can connect the router directly to other roles such as smartphones or laptops via a WiFi ne2rk. The SSID name and password are located at the bottom of the router.

Performance Okay and Full of Features

D-Link DWR-921 is able to connect to 32 devices at once and enter the N300 4G LTE wireless router classification. This means it theoretically supports transfer speeds of up to 300 Mbps with an 802.11n WiFi connection on a 2.4 GHz frequency. It is very sufficient for the needs of most users in general.

For band support from the SIM card itself, DWR-921 is capable of receiving GSM bands (850/900/1800/1900 MHz), UMTS (900/2100 MHz Power Class 3), and LTE (800/900/1800/2600 MHz). This router is able to receive uplinks of up to 150 Mbps and downlinks of up to 50 Mbps in the 4G LTE ne2rk.

D-Link DWR-921 Home

With the Dual Band, the router will automatically switch to the 3G ne2rk automatically if the 4G ne2rk used has a signal that is too weak or broken so that the device can continue to connect.

All of these combinations allow users to continue to be connected to the internet without having to worry about being cut off unexpectedly. If the WAN connection is lost, there is a Fail Over feature that can make the LTE connection immediately replace without the hassle of switching devices.

I myself, while trying DWR-921, used my 3 operator SIM card which, as is known, has a less reliable signal. Fortunately this router is able to capture the signal of operator 3 quite well with a power figure reaching 54% in my residence.

There is no significant difference in speed between using the DWR-921 and a smartph1. Through the Speedtest service, I get download speeds of 3.48 Mbps with DWR-921 while on smartphones I get 3.08 Mbps.

D-Link DWR-921 Speedtest

The connection is quite stable with a decent response time of around 20ms to 50ms so it is still quite suitable for use in playing online games. Although some fluctuations can still be seen up to 200ms, it may be overcome by using a SIM card from a better operator.

Compared to MiFi devices, the WiFi coverage provided is somewhat better. I can still connect to the router while on the 2nd floor without problems. This is one of the advantages compared to ordinary MiFi.

D-Link DWR-921 Ping

Concerning security, DWR-921 supports 64/128-bit WEP and WPA & WPA2 encryption so that the ne2rk cannot be used by just any1. There is also a Ne2rk Address Translation (NAT) firewall and Stateful Packet Inspection (SPI) that can be activated to avoid interference from cyberspace.

One thing to know, the administrator page that can be accessed via has no password installed so I have to change it right away so that it isn’t easily tampered with by others.

DWR-921 has a router-class administrator page, unlike MiFi devices which are usually much more limited. On the main page, you will see general information from this router starting from the internet ne2rk information used, how many devices are connected via WiFi, to the status of the LAN ne2rk.

D-Link also provides a Setup Wizard feature that can be used to change basic settings more easily. If you want a much more detailed setting then there are categorized menus to choose from.

D-Link DWR-921 Features

Users can set Firewalls, MAC Address filters, block URLs, VPNs, QoS, even DMZs. One thing that is not less interesting, users can directly send SMS via the Menu System Message Service to be used to buy internet packages.


The D-Link DWR-921 is an unusual and slightly unique device that offers a fully functional router and a few additional MiFi features. I’m actually quite surprised why devices like this are not commonly found until now.

During the try, DWR-921 worked very well even exceeding my expectations. There are so many features that can be used as the router should, not including the Fail Over feature, which is very useful for keeping connections connected. Additional SIM card support is something that I really welcome.

Even so, there is one thing that makes me a little disappointed and hope to be added to the next product, the battery. The existence of a battery will make this device much more portable, especially considering its larger size than most MiFi devices.

Therefore D-Link DWR-921 is more suitable to be taken to travel to places that you know have a power source, but do not have an internet ne2rk or a place that has Ethernet and you need additional WiFi ne2rks such as hotel rooms.