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Connectivity
Connectivity technology	Wireless wired	Wireless Wired	Wireless Wired	N/A
Number of LAN ports	4	4	4	4
Number of WAN ports	1	1	1	1
USB	yes	yes	yes	yes
Total USB ports	2	2	2	2
Number of USB 2.0 ports	1	1	1	1
Number of USB 3.0/3.1 ports	1	1	1	1
Communication mode	N/A	Full-Duplex	Full-Duplex	N/A
Number of USB 3.1 ports	N/A	0	0	0

Design
Colour of product	Black	Black Grey White	Black	Black Blue
Active cooling (fan)	N/A	no	no	yes

Dimensions
Width	3.28 in	8.66 in	8.66 in	9.69 in
Height	0.87 in	6.3 in	3.28 in	2.05 in
Depth	6.3 in	3.28 in	6.3 in	7.64 in
Weight	1410.96 lb	1.41 lb	1.92 lb	2.29 lb
Number of units	N/A	1	1	1
Rack-mount design	N/A	no	no	no

Communication
Frequency band	2.4 GHz / 5 GHz	2.4 GHz 5 GHz	2.4 GHz 5 GHz	N/A
Communication protocol	IPv6	IPv6 Multicast Quality of Service Virtual LAN Wireless Multimedia Extensions	IPv6 Quality of Service Wireless Multimedia Extensions	IPv6 Quality of Service Wireless Multimedia Extensions
Network / transport Protocol	PPTP L2TP IPSec FTP	TCP/IP PPTP L2TP NTP IPSec PPPoE LPR/LPD DHCP DDNS	PPTP L2TP NTP IPSec PPPoE FTP DHCP DDNS	N/A
Wireless standards	IEEE 802.11a IEEE 802.11g IEEE 802.11n IEEE 802.11b IEEE 802.11ac	IEEE 802.11a IEEE 802.11ac IEEE 802.11b IEEE 802.11g IEEE 802.1Q IEEE 802.3ab IEEE 802.3u IEEE 802.3x IEEE 802.11n	IEEE 802.11a IEEE 802.11ac IEEE 802.11b IEEE 802.11g IEEE 802.11n	IEEE 802.11a IEEE 802.11ac IEEE 802.11b IEEE 802.11g IEEE 802.3ab IEEE 802.3u IEEE 802.11n
Wireless network	yes	yes	yes	yes
2.4GHz wireless network	yes	yes	yes	yes
5GHz wireless network	yes	yes	yes	yes
Number of antennas	3	3	4	4
Management interface	N/A	Telnet Web/network	Web/network	Web/network
6to4	N/A	yes	yes	no
Data link layer	N/A	Ethernet Fast Ethernet Gigabit Ethernet IEEE 802.11a IEEE 802.11ac IEEE 802.11b IEEE 802.11g IEEE 802.11n	Ethernet Fast Ethernet Gigabit Ethernet IEEE 802.11a IEEE 802.11ac IEEE 802.11b IEEE 802.11g IEEE 802.11n	Ethernet Fast Ethernet Gigabit Ethernet IEEE 802.11a IEEE 802.11ac IEEE 802.11b IEEE 802.11g IEEE 802.11n
Number of simultaneous connections	N/A	30000	N/A	30000
Jumbo frames support	N/A	yes	yes	no
Mobile broadband support	N/A	yes	yes	no
Type of mobile support	N/A	USB modem	USB modem	N/A
Mobile HSUPA	N/A	yes	yes	N/A
Mobile HSDPA (turbo-3G)	N/A	yes	yes	N/A
Mobile 4G (LTE)	N/A	yes	yes	N/A
Mobile 3G	N/A	yes	yes	N/A
Mobile 2G (GSM)	N/A	yes	yes	N/A
Throughput WAN-LAN	N/A	755.0 Mbps	N/A	631.1 Mbps
VoIP (SIP)	N/A	no	no	no
2.4GHz data transfer rate	N/A	600.0 Mbps	1000.0 Mbps	600.0 Mbps
5GHz data transfer rate	N/A	1300.0 Mbps	2167.0 Mbps	1300.0 Mbps
External antenna	N/A	yes	yes	yes
Detachable antenna	N/A	yes	yes	yes
MIMO	N/A	yes	yes	yes
Beamforming	N/A	yes	yes	yes
MU-MIMO	N/A	no	yes	N/A
Total wireless data transfer rate	N/A	1900.0 Mbps	2917.0 Mbps	1331.2 Mbps
Wireless security	N/A	TKIP WEP WPA-Enterprise WPA-PSK WPA WPA2-Enterprise WPA2-PSK WPA2 WPS	WEP WPA-Enterprise WPA-PSK WPA WPA2-Enterprise WPA2-PSK WPA2 WPS	WEP WPA-PSK WPA WPA2-PSK WPA2 WPS

Memory
Included flash memory	128.0 MB	128.0 MB	256.0 MB	128.0 MB
Included RAM	256.0 MB	256.0 MB	512.0 MB	256.0 MB
Maximum flash memory	N/A	128.0 MB	256.0 MB	128.0 MB
Maximum RAM	N/A	256.0 MB	512.0 MB	512.0 MB