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RECT™ 4U Rack Server – Maximum Performance and Capacity in Four Rack Units

RECT™ 4U rack servers stand for uncompromising performance, unmatched expandability, and massive storage capacity. They’re the perfect choice for businesses needing a powerful server platform with room for high compute power, extensive storage, and full customization. Whether for data-heavy applications, high-availability storage, or specialized IT infrastructures – these 4U systems offer ultimate design freedom.

Plenty of Space for Performance, Storage & Future Readiness

The larger chassis allows integration of high-end components – including dual-socket systems with the latest Intel Xeon or AMD EPYC processors, up to 2 TB ECC DDR5 RAM, and numerous expansion cards for networking, storage, or graphics.

On the storage side, RECT™ 4U servers offer up to 24 hot-swap drive bays for HDDs or SSDs in SAS/SATA format, with optional NVMe or RAID. That translates to up to 624 TB of raw storage – all within just four rack units.

Short entry-level 4U rack servers with single socket CPU

Versatile – from Storage to AI

This flexibility makes RECT™ 4U servers ideal for a wide range of scenarios:

As large-capacity, RAID-protected data storage

For virtualized platforms with many cores and parallel workloads

In industrial settings with rich I/O and rugged construction

As GPU servers for AI, ML, or analytics workloads (model-dependent)

Shallow-depth “shorty” versions are also available – perfect for installations with limited space, like tech rooms or remote locations.

Mid-range 4U rack servers with single socket

Smart Flexibility – Built for Your Needs

Whether you’re looking for a scalable platform for future growth or need to handle high compute and storage loads today – RECT™ 4U servers are ready. With up to six PCIe 5.0 expansion slots, optional redundant power supplies, and built-in remote management (IPMI 2.0), they’re engineered for secure, high-performance, continuous operation in any environment.

Configure now – your new RECT™ 4U Rack Server.

Design your system or let our expert team support you – tailored, professional, and efficient.

Your benefits at a glance:

■ Maximum performance & density in just 4U

■ Custom configurations – from compact shorties to full-featured builds

■ Up to 24 hot-swap drives and NVMe storage options

■ Future-ready PCIe architecture for expansion

■ Suitable for storage, virtualization, AI, and industrial IT

Dual Socket 4U rack servers

RECT™ custom-made products

If you have special needs - speak with us. We provide advice, help you plan and come up with a solution that's right.
  • Adjusted hardware and software configurations
  • Customized system test runs
  • Individual service agreements (SLA)

The latest server and computer trends in the RECT™ shop

CORETO Aktiengesellschaft is a manufacturer of performance-specific servers and workstations.

RECT™ is a product brand and the RECT™ store with configurator is a division of CORETO.

© CORETO Aktiengesellschaft, Friedberg, 2001-2025