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Enterprise Ultra

Do you just want the best? This over-specified monster load balancer comes with the unrivalled performance and total redundancy of everything. For complete application delivery peace-of-mind, simply add 2x Enterprise Ultra's in HA failover mode.

  • Hot Swappable RAID & PSU's
  • Choice of 10GB Adapter
  • More power than you could ever need
  • 2 x Intel® 10 Core CPUs & 32 GB RAM
  • Outstanding SSL Performance
  • 3 Year On-site Dell Warranty
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Max Conns
Tech Specs

Simple, Secure and Stress Free

  • configure

    Configure & Test

    Simple to set-up & configure using our intuitive WUI

  • monitor

    Monitor & Control

    Securely monitor your infrastructure & traffic

  • maintain

    Secure & Maintain

    Stress free maintenance of your servers & applications

See for yourself

Don't you hate overpriced hardware with restricted features?

Model Throughput SSL (2K Key) WAF GSLB Price
Kemp LM-8000 20 Gbps 16,000 TPS £25,000
F5 LTM 5000S 30 Gbps 10,000 TPS £30,000
Enterprise Ultra 18 Gbps 11,219 TPS £9,995

“The fact that we had the two Loadbalancer.org Enterprise Ultra appliances up and running as a high-availability pair in 10mins had me hooked. The down to earth and efficient Technical Support staff were the icing-on-the-cake. Oh .. and I saved £20,000 from the allocated budget.” Gary Besta, IT Manager, Crocus

MORE Case studies

Need something totally bespoke?

More RAM? Less CPU? Redundant PSU? Contact us to customize your load balancer

Technical Specifications


Do you just want the best? This over-specified monster load balancer comes with the unrivalled performance of 2 x Intel® 10 Core CPUs and total redundancy of everything. We guarantee you will never need more real world performance than this. For complete peace-of-mind, simply add 2 Enterprise Ultra's in HA failover mode.

Hardware platform

  • 2 x 1Gbps full duplex Ethernet ports
  • 2 x 1Gbps + 2 x 10Gbps ports - Intel RJ-45 or SFP+
  • Hardware RAID
  • Redundant PSU
  • 32Gb DDR RAM
  • 2 * 10 Core Intel Xeon CPU
  • Enterprise DRAC remote console
  • Local admin via console/VGA and USB
  • Remote console access via SSH
  • Dell 430 server based
  • CE/FCC Certified, UL Listed, RoHS Compliant

Standard Features

  • Server Load Balancing (SLB) for any TCP or UDP based protocol
  • SSL Acceleration/Offload
  • Layer 7 Content Switching
  • High performance Direct Routing (N-Path), TUN, NAT & SNAT
  • Schedulers: Round Robin, Least Connection, Weighted Least Connection, Weighted Round Robin
  • Dynamic Schedulers: Windows & Linux feedback agents, Custom HTTP feedback option
  • Load balance almost ANY protocol i.e. HTTP, HTTPS, SMTP, POP3, IMAP, Terminal Server etc
  • Support for Direct Server Return (DSR) configurations
  • Configurable S-NAT support
  • Link aggregation (802.3ad)
  • VLAN Tagging (802.1Q)


  • Hardware SSL Acceleration (AES, up to 256bit)
  • PCI-ready SSL Implementation
  • Unlimited support for SSL Certificates
  • Support for Third Party Certificates
  • Automated SSL Certificate Chaining
  • SSL Certificate Signing Request (CSR) Generation
  • PFX upload and conversion
  • Proxy protocol support


  • Up to 18Gbps Throughput
  • SSL Acceleration/Offload up to 18,306 TPS
  • 212,087 HTTP RPS
  • Up to 16,833 Mbps Throughput
  • 62,400,000 Concurrent sessions

L4/L7 Sticky (Persistence)

  • Connection persistence based on
  • – Source IP address
  • – SSL Session ID
  • – Passive Cookie
  • – Active Cookie (Insert)
  • – RDP Cookie / Session Broker
  • – X-forwarded for header (better than Super HTTPS)
  • Port following (Persistence on multiple combined ports)
  • Multiple fallback options i.e. use source IP if no cookie found

Security Functionality

  • Fully integrated WAF (Web Application Firewall)
  • OWASP top 10 protection
  • Persistent White/Black List (Access Control List system)
  • Firewall filtering (full iptables scripting support)
  • Firewall lock down wizard
  • DDOS mitigation both at layer 4 & 7
  • Virtual patching
  • HTTP & SYN Flood protection
  • Block SQL Injection Attacks
  • Prevent Cross Site Scripting (XSS)
  • Stop Hackers Exploiting Software Vulnerabilities
  • FIPS 140-2 Compliant
  • PCI DSS Ready

Health checking and high availability

  • Application health checking for DNS, FTP, HTTP, HTTPS, IMAP, NNTP… and many more
  • ICMP health checking of server farm machines
  • Complex manually scripted health checks
  • Automatically remove a failed server from the load balancing pool
  • Automatic replication of static & dynamic configuration from master to slave load balancer
  • Stateful Failover (persistence table replication)
  • One click secure clustered pair configuration

Scheduling and balancing methods

  • Round Robin
  • Weighted Round Robin
  • Least Connection
  • Weighted Least Connection
  • Agent-based Adaptive (Windows and Linux Agents)
  • Layer 7 Content Switching
  • Destination Hash for transparent proxy


  • Secure, SSH, HTTP and HTTPS for remote access administration
  • Fully configurable using Web User Interface (WUI)
  • Easy start configuration and maintenance wizards
  • WebUI-based Help Assistant
  • Virtual Service Configurations can be edited and tuned on-the-fly
  • Real time performance and availability displays
  • Optionally configure console port for local administration
  • Remotely scriptable Command Line Interface (LBCLI) Option
  • Local and Remote syslogd support
  • Selective restore of physical and Virtual Service data
  • Support for Connection Draining or halting with or without persistence
  • Software and Security updates available on & off-line
  • WebUI Log Reporting with Tabbed Browser Support
  • SNMP support for performance metrics
  • Full root access to with a multitude of diagnostic tools,e.g. tcpdump etc.

Warranty & Support Services

  • Hardware Warranty:
  • 3 Years Next Business Day on site Engineer included as standard
  • Support Options:
  • Premium Support - Unlimited 24/7 access to our Technical Support Engineers
  • Standard Support - Unlimited support during business hours (8x5)
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Hardware Product Summary
Enterprise R20
Enterprise MAX
Enterprise 10G
Enterprise 40G
Enterprise Ultra
High Performance Unrestricted Best Value 10G Accelerated Data Delivery Blistering Performance
Throughput 3Gbps 3Gbps 16Gbps 38Gbps 18Gbps
HTTP RPS 252,684 252,684 300,237 352,298 505,596
Maximum Connections 15,600,000 15,600,000 31,200,000 31,200,000 62,400,000
SSL TPS (1K Keys) 6,316 6,316 6,316 7,047 18,306
Price £2,995 £4,495 £5,995 £7,495 £9,995
Full Comparison

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