Product comparison · 2 wireless routers

D-Link DWR-921 wireless router Fast Ethernet vs FRITZ!Box 6840 LTE International

30specifications compared
16differ
14identical
32known for one product only

Key differences

3G/4G USB modem compatibility
- DWR-921 wireless router Fast Ethernet:No
- FRITZ!Box 6840 LTE International:Yes
Wi-Fi band
- DWR-921 wireless router Fast Ethernet:No
- FRITZ!Box 6840 LTE International:Dual-band (2.4 GHz / 5 GHz)
WLAN data transfer rate (max)
- DWR-921 wireless router Fast Ethernet:150 Mbit/s
- FRITZ!Box 6840 LTE International:300 Mbit/s
Ethernet LAN interface type
- DWR-921 wireless router Fast Ethernet:Fast Ethernet
- FRITZ!Box 6840 LTE International:Gigabit Ethernet
Ethernet LAN data rates
- DWR-921 wireless router Fast Ethernet:10,100 Mbit/s
- FRITZ!Box 6840 LTE International:1000 Mbit/s
Cabling technology
- DWR-921 wireless router Fast Ethernet:10/100Base-T(X)
- FRITZ!Box 6840 LTE International:10/100/1000Base-T(X)
Product colour
- DWR-921 wireless router Fast Ethernet:Black, White
- FRITZ!Box 6840 LTE International:Red, Silver
LED indicators
- DWR-921 wireless router Fast Ethernet:3G, LAN, Power, WAN, WLAN
- FRITZ!Box 6840 LTE International:Yes

Side by side

Differences highlightedShow differences only

Comparison of DWR-921, FRITZ!Box 6840 LTE International
62 specifications	A D-Link DWR-921 wireless router Fast Ethernet Model DWR-921 View product	B FRITZ! FRITZ!Box 6840 LTE International View product
WAN connection1 differ
Ethernet WAN	Yes	Yes
SIM card slot	Yes	Yes
3G/4G USB modem compatibilityDiffers	No	Yes
DSL WANKnown for one	No	Unknown — not stated by the source
Wireless LAN features3 differ
Wi-Fi bandDiffers	No	Dual-band (2.4 GHz / 5 GHz)
Top Wi-Fi standard	Wi-Fi 4 (802.11n)	Wi-Fi 4 (802.11n)
WLAN data transfer rate (max)Differs	150 Mbit/s	300 Mbit/s
Wi-Fi standardsDiffers	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, 802.11b, 802.11g
Network4 differ
Ethernet LAN	Yes	Yes
Ethernet LAN interface typeDiffers	Fast Ethernet	Gigabit Ethernet
Ethernet LAN data ratesDiffers	10,100 Mbit/s	1000 Mbit/s
Cabling technologyDiffers	10/100Base-T(X)	10/100/1000Base-T(X)
Networking standardsDiffers	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3u	IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
VPN supportKnown for one	L2TP/PPTP/IPSEC	Unknown — not stated by the source
Mobile networkidentical
Mobile network generation	4G	4G
3G	Yes	Yes
4G	Yes	Yes
4G standardKnown for one	Unknown — not stated by the source	LTE
Ports & interfacesidentical
Ethernet LAN (RJ-45) ports	4	4
RJ-11 ports quantityKnown for one	Unknown — not stated by the source	1
DC-in jack	Yes	Yes
Securityidentical
Security algorithms	128-bit WEP, 64-bit WEP, WPA, WPA2	128-bit WEP, 64-bit WEP, WPA, WPA2
FirewallKnown for one	Unknown — not stated by the source	Yes
FilteringKnown for one	Unknown — not stated by the source	Yes
MAC address filteringKnown for one	Unknown — not stated by the source	Yes
Network address translation (NAT)	Yes	Yes
Stateful Packet Inspection (SPI)Known for one	Yes	Unknown — not stated by the source
Protocolsidentical
DHCP clientKnown for one	Unknown — not stated by the source	Yes
DHCP serverKnown for one	Unknown — not stated by the source	Yes
Universal Plug and Play (UPnP)Known for one	Unknown — not stated by the source	Yes
Design2 differ
Product colourDiffers	Black, White	Red, Silver
LED indicatorsDiffers	3G, LAN, Power, WAN, WLAN	Yes
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	LAN (RJ-45)
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
Manual	Yes	Yes
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Antenna1 differ
Antenna design	External	External
Antennas quantityDiffers	2	3
Detachable antenna(s)Known for one	Yes	Unknown — not stated by the source
Poweridentical
AC input voltageKnown for one	Unknown — not stated by the source	230 V
AC input frequencyKnown for one	Unknown — not stated by the source	50 Hz
Power consumption (typical)Known for one	Unknown — not stated by the source	8 W
System requirementsidentical
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions3 differ
DepthDiffers	111.5 mm	25 mm
HeightDiffers	23.5 mm	155 mm
WidthDiffers	190 mm	210 mm
WeightKnown for one	500 g	Unknown — not stated by the source
Other features2 differ
Mobile network connection	Yes	Yes
Bandwidth (first)Known for one	Unknown — not stated by the source	2.4 GHz
Bandwidth (second)Known for one	Unknown — not stated by the source	5 GHz
Frequency bandKnown for one	Unknown — not stated by the source	2.4 & 5
Frequency rangeKnown for one	Unknown — not stated by the source	2.4 - 5 GHz
USB ports quantityKnown for one	Unknown — not stated by the source	1
USB versionKnown for one	Unknown — not stated by the source	2.0
WLAN data transfer rates supportedDiffers	150 Mbit/s	300 Mbit/s
xDSL connectionDiffers	No	Yes
Rack mountingKnown for one	No	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	CE, Wi-Fi	Unknown — not stated by the source
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Operating temperature (T-T)Known for one	0 - 40 °C	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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