Feature

Cisco ASA 5550

Cisco ASA
5555-X

Stateful Inspection Throughput (Maximum¹)

Up to 1.2 Gbps

4 Gbps

Stateful Inspection Throughput (Multiprotocol²)

-

2 Gbps

IPS Throughput³

Next-Generation Throughput⁴(Multiprotocol)

-

1.4 Gbps

3DES/AES VPN Throughput⁵

Up to 425 Mbps

700 Mbps

Users/Nodes

Unlimited

Unlimited

Cisco Cloud Web Security Users

2000

3000

IPsec VPN Peers

5000

5000

Premium AnyConnect VPN Peers

2/5000

2/5000

Concurrent Connections

650,000

1,000,000

New Connections/
Second

33,000

50,000

Virtual Interfaces (VLANs)

400

500

Security Contexts (Included/
Maximum)⁶

2/50

2/100

High Availability

Active/Active and Active/Standby

Active/Active and Active/Standby

Expansion Slot

0

1 interface card

Number of User-Accessible Flash Slots

1

0

USB 2.0 Ports

2

2²

Integrated I/O

8 GE + 1 Fast Ethernet

8 GE copper

Expansion I/O

None

6 GE copper or 6 GE SFP

Dedicated Management Port

None

Yes (1 GE)

Serial Ports

2 RJ-45, console and auxiliary

1 RJ-45

Solid State Drive

-

2 slots, RAID 1

120 GB MLC SED

Memory

4 GB

16 GB

Minimum System Flash

256 MB

8 GB

System Bus

Multibus architecture

Multibus architecture

Environmental Operating Ranges

Operating

Temperature

32 to 104ºF
(0 to 40ºC)

23 to 104°F
(-5 to 40°C)

Relative Humidity

5 to 95 percent noncondensing

90 percent

Altitude

Designed and tested for 0 to 9840 ft (3000m); agency approved for 2000m

Designed and tested for 0 to 10,000 ft (3050m)

Shock

1.14 m/sec (45 in./sec) 1/2 sine input

50G, 2 m/sec

Vibration

0.41 Grms2 (3 to 500 Hz) random input

0.41 Grms (3 to 500Hz) random input

Acoustic Noise

60 dBa max

67.9 dBa max