Datasheet
Data Sheet
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 9 of 19
Feature Cisco ASA 5505 Cisco ASA 5510 Cisco ASA 5520 Cisco ASA 5540 Cisco ASA 5550
Virtual Interfaces
(VLANs)
3 (no trunking
support)/20 (with
trunking
support)*
50 /100* 150 200 250
Security
Contexts
(Included/
Maximum)*
0/0 0/0 (Base); 2/5
(Security Plus)
2/20 2/50 2/50
High Availability Not supported;
stateless
Active/Standby
and redundant
ISP support*
Not supported;
Active/Active and
Active/ Standby**
Active/Active and
Active/ Standby
Active/Active and
Active/ Standby
Active/Active and
Active/ Standby
Expansion Slot 1, SSC 1, SSM 1, SSM 1, SSM 0
User-Accessible
Flash slot
0 1 1 1 1
USB 2.0 Ports 3 (1 on front, 2 on
rear)
2 2 2 2
Serial Ports 1 RJ-45 console 2 RJ-45, console
and auxiliary
2 RJ-45, console
and auxiliary
2 RJ-45, console
and auxiliary
2 RJ-45, console
and auxiliary
Rack-Mountable Yes, with rack-
mount kit
(available in the
future)
Yes Yes Yes Yes
Wall-Mountable Yes, with wall-
mount kit
(available in the
future)
Not Available Not Available Not Available Not Available
Security Lock
Slot (for
Physical
Security)
Yes Not Available Not Available Not Available Not Available
Technical Specifications
Memory 256 MB 256 MB 512 MB 1 GB 4 GB
Minimum
System Flash
64 MB 64 MB 64 MB 64 MB 64 MB
System Bus Multibus
architecture
Multibus architecture Multibus
architecture
Multibus
architecture
Multibus
architecture
Environmental Operating Ranges
Operating
Temperature 32 to 104ºF (0 to
40ºC)
32 to 104ºF (0 to 40ºC)
Relative humidity 5 to 95 percent
noncondensing
5 to 95 percent noncondensing
Altitude Designed and tested for: 0 to 9840 ft (3000 m). Agency approved for: 2000 m
Shock 1.14 m/sec (45
in./sec) ½ sine
input
1.14 m/sec (45 in./sec) 1/2 sine input
Vibration 0.41 Grms2 (3 to
500 Hz) random
input
0.41 Grms2 (3 to 500 Hz) random input
Acoustic noise 0 dBa max 60 dBa max
Nonoperating
Temperature -13 to 158ºF (-25
to 70ºC)
-13 to 158ºF (-25 to 70ºC)
Relative humidity 5 to 95 percent
noncondensing
5 to 95 percent noncondensing
Altitude 0 to 15,000 ft
(4570 m)
0 to 15,000 ft (4570 m)
Shock 30 G 30 G