There are four models of the Barracuda Load Balancer. The entry level, Barracuda Load Balancer 240 handles more than 10 real servers with 100Mbps traffic throughput. The high capacity, Barracuda Load Balancer 640 offers support for more than 250 real servers, 950Mbps traffic throughput, API access and High Availability configurations.

 Barracuda Load Balancer Datasheet

Model Comparison	Model 240	Model 340	Model 440	Model 640
CAPACITY*
Maximum Throughput	95 Mbps	950 Mbps	950 Mbps	950 Mbps
Real Server Support	10	35	50	250
SSL Offloading/Acceleration		150 TPS	200 TPS	2,000 TPS
HARDWARE
Rackmount Chassis	1U Mini	1U Mini	1U Mini	1U Fullsize
Dimensions (in.)	16.8x1.7x14	16.8x1.7x14	16.8x1.7x14	16.8x1.7x22.6
Dimensions (cm.)	42.7x4.3x35.6	42.7x4.3x35.6	42.7x4.3x35.6	42.7x4.3x57.4
Weight (lbs. /kg.)	12 / 5.4	12 / 5.4	12 / 5.4	26 / 11.8
Ethernet	2 x 10/100	2 x Gigabit	2 x Gigabit	14 x Gigabit
AC Input Current (Amps)	1.0	1.2	1.4	1.8
ECC Memory
FEATURES
Layer 4 Load Balancing
Direct Server Return
Intrusion Prevention
High Availability
VLAN
Layer 7 Load Balancing
Cookie Persistence
SSL Offloading
Content Routing
SNMP
Programming Interface/API
Global Server Load Balancing
HTTP Compression
Content Caching