Product comparison · 2 hardware firewalls

Zyxel Firewall USG FLEX vs Zyxel USG 1900

15specifications compared
12differ
3identical
32known for one product only

Key differences

The Zyxel USG 1900 has 5.2 Gbit/s more firewall throughput than the Zyxel Firewall USG FLEX (7 Gbit/s vs 1.8 Gbit/s). The Zyxel USG 1900 has 0.45 Gbit/s more VPN throughput than the Zyxel Firewall USG FLEX (0.9 Gbit/s vs 0.45 Gbit/s). The Zyxel USG 1900 has 31,123.3 h more mean time between failures (MTBF) than the Zyxel Firewall USG FLEX (560811.5 h vs 529688.2 h).

Firewall throughput
- Firewall USG FLEX:1.8 Gbit/s
- USG 1900:7 Gbit/s
VPN throughput
- Firewall USG FLEX:0.45 Gbit/s
- USG 1900:0.9 Gbit/s
Mean time between failures (MTBF)
- Firewall USG FLEX:529688.2 h
- USG 1900:560811.5 h
Number of VLANs
- Firewall USG FLEX:16
- USG 1900:128
Ethernet LAN (RJ-45) ports
- Firewall USG FLEX:6
- USG 1900:8
Input current
- Firewall USG FLEX:2.5 A
- USG 1900:1.3 A
Width
- Firewall USG FLEX:272 mm
- USG 1900:430 mm
Depth
- Firewall USG FLEX:187 mm
- USG 1900:250 mm

Side by side

Differences highlightedShow differences only

Comparison of Firewall USG FLEX, USG 1900
47 specifications	A Zyxel Firewall USG FLEX View product	B Zyxel USG 1900 View product
Data transmission2 differ
Firewall throughputDiffers	1.8 Gbit/s	7 Gbit/s
VPN throughputDiffers	0.45 Gbit/s	0.9 Gbit/s
IPSec VPN throughputKnown for one	100 Gbit/s	Unknown — not stated by the source
SSL performanceKnown for one	60 transactions/sec	Unknown — not stated by the source
Performance1 differ
Heat dissipationKnown for one	45.38 BTU/h	Unknown — not stated by the source
Mean time between failures (MTBF)Differs	529688.2 h	560811.5 h
Concurrent connectionsKnown for one	Unknown — not stated by the source	500000
Network1 differ
Concurrent SSL/VPN connections (default)Known for one	60	Unknown — not stated by the source
Concurrent SSL/VPN connections (maximum)Known for one	200	Unknown — not stated by the source
Active TCP connections (max)Known for one	600000	Unknown — not stated by the source
Number of VLANsDiffers	16	128
Number of VPN connectionsKnown for one	Unknown — not stated by the source	755
Number of usersKnown for one	Unknown — not stated by the source	55 user(s)
VPN tunnels quantityKnown for one	Unknown — not stated by the source	2000
Securityidentical
Security algorithmsKnown for one	IPSEC, SSL/TLS	Unknown — not stated by the source
VPN supportKnown for one	IKEv2, IPSec, SSL, L2TP/IPSec	Unknown — not stated by the source
Management featuresidentical
URL filteringKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces1 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	2	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	6	8
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Number of console portsKnown for one	1	Unknown — not stated by the source
Ethernet DMZ ports quantityKnown for one	4	Unknown — not stated by the source
SFP module slots quantityKnown for one	1	Unknown — not stated by the source
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	2
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
Designidentical
Built-in fanKnown for one	No	Unknown — not stated by the source
Rack mountingKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Input currentDiffers	2.5 A	1.3 A
DC input voltageKnown for one	12 V	Unknown — not stated by the source
Power consumption (max)Known for one	13.3 W	Unknown — not stated by the source
AC input voltageKnown for one	Unknown — not stated by the source	100-240 V
AC input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Power consumption (typical)Known for one	Unknown — not stated by the source	58.5 W
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Storage temperature (T-T)	-30 - 70 °C	-30 - 70 °C
Operating relative humidity (H-H)	10 - 90%	10 - 90%
Storage relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	272 mm	430 mm
DepthDiffers	187 mm	250 mm
HeightDiffers	36 mm	44 mm
WeightDiffers	1.4 kg	3.3 kg
Packaging dataidentical
Package widthKnown for one	427 mm	Unknown — not stated by the source
Package heightKnown for one	247 mm	Unknown — not stated by the source
Package depthKnown for one	73 mm	Unknown — not stated by the source
Other features2 differ
Firewall throughputDiffers	1800 Mbit/s	7000 Mbit/s
VPN throughputDiffers	450 Mbit/s	900 Mbit/s

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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