- Innovative design, optimized for cost and performance to support business-critical applications and cloud deployments.
- Excellent RAS and outstanding uptime for an improved business environment.
- Easy to deploy, integrate, service and manage.

Optimized for cost and performance
The right choice when compromise is not an option, the IBM System x3550 M4 blends outstanding uptime, performance and I/O flexibility for cost efficiency and rock-solid reliability. This compact rack server offers an energy-smart, affordable and easy-to-use solution with a pay-as-you-grow design to help lower costs and manage risks. With more computing power per watt, support for the latest Intel Xeon E5-2600 series processors and advanced memory support, the x3550 M4 offers balanced performance and density.

Uptime for business-critical applications
With redundant and hot-swap fans, disks and power supplies, the x3550 M4 provides a resilient architecture ideal for business-critical applications. Predictive failure analysis and light path diagnostics provide advanced warning on power supplies, fans, VRMs, disks, processors and memory. Redundant, hot-swap components make it easy to replace failures without taking your system down.
Select configurations of the x3550 M4 are part of the IBM® Express Portfolio™ designed to meet the needs of small and midsized businesses. Easy to manage, Express® models vary by country.

- Performance, flexibility, cost and density—perfectly balanced.
- Innovative design, optimized for cost and performance to support business-critical applications and cloud deployments.
- Excellent RAS and outstanding uptime for an improved business environment.
- Easy to deploy, integrate, service and manage.
- Comprehensive systems management tools help increase uptime, reduce costs and improve productivity with advanced server management capabilities.
- Support for GPU, high-IOPS SSDs and 10 GbE for different types of workloads.

- 1U rack server provides expandability and high performance in a dense form factor.
- Up to two Intel Xeon Processor E5-2600 product family.
- Up to 768 GB memory and up to 2 DIMMs per channel at 1600 MHz memory speed.
- Integrated quad-port Gigabit Ethernet and optional embedded dual-port 10 GbE.
- Up to two PCIe 3.0 expansion slots; An optional PCI-X slot is available.
- Up to 8 TB of 2.5-inch hot-swap SAS/SATA/SSDs or 9 TB of 3.5-inch hot-swap or simple-swap SAS/SATA HDDs.
- Integrated 6 Gbps hardware RAID-0, -1, -10. and optional RAID-5, -50 or -6, -60.
- Hot-swap disk/fan/power supply, two fan zones with N+1 fans design, light path diagnostics and Predictive Failure Analysis, better thermal design, balanced efficiency, uptime and serviceability.