Dell PowerEdge M640Blade Server · Dual Silver 4214R · 256GB · 2x240GB

Dell PowerEdge M640 Certified Refurbished Blade Server

Experience enterprise-grade virtualisation with the Dell PowerEdge M640 blade server featuring dual Intel Xeon Silver 4214R processors (2.4GHz base, 3.5GHz turbo, 12 cores/24 threads each), 256GB DDR4 ECC RAM running at 2933 MT/s, 2×240GB M.2 SSDs in RAID 1 configuration via BOSS controller, Broadcom 5720 quad-port 1GbE networking, iDRAC9 Enterprise management, and TPM 2.0 security—all housed in a half-height blade form factor measuring 197.9mm (H) × 544.32mm (D) × 50.35mm (W) and weighing a maximum of 6.4kg. This certified refurbished server from Reboot IT delivers exceptional density-optimised performance ideal for demanding enterprise workloads whilst providing outstanding value compared to new equipment.

Designed for Demanding Enterprise Workloads

The Dell PowerEdge M640 excels in high-performance computing (HPC), anything-as-a-service (XaaS), private cloud deployments, and virtualisation environments. Deploy up to 16 dual-socket compute nodes within a single PowerEdge M1000e or VRTX chassis, making this blade server perfect for data centres requiring highly scalable, multi-server clustering configurations. The substantial 256GB of error-correcting code (ECC) memory ensures data integrity whilst supporting memory-intensive applications such as database servers, virtual desktop infrastructure (VDI), and container orchestration platforms.

Premium Features and Enterprise Capabilities

• Powerful dual-processor architecture with 24 cores and 48 threads total, delivering exceptional parallel processing capabilities for virtualisation and multi-threaded applications
• Enterprise-class memory with 256GB DDR4 RDIMM supporting up to 2TB maximum capacity across 16 DIMM slots, ensuring headroom for future expansion
• Reliable boot storage featuring BOSS controller with dual 240GB M.2 SSDs in RAID 1 mirrored configuration for redundancy and fast system responsiveness
• Advanced remote management through iDRAC9 Enterprise with comprehensive out-of-band management, virtual console, and lifecycle controller integration
• Comprehensive security features including TPM 2.0, Secure Boot, cryptographically signed firmware, Hardware Root of Trust, and System Lockdown capabilities
• Flexible storage expansion supporting up to 2×2.5" SAS/SATA drives or NVMe SSDs with optional PERC RAID controllers (H330, H730P, or software RAID S140)
• Enhanced network connectivity via Broadcom 5720 quad-port 1GbE with support for optional 10GbE or 25GbE mezzanine cards through dual PCIe Gen 3 slots
• Energy-efficient blade design drawing power from chassis-level platinum-efficiency power supplies with N+1 redundancy and hot-swappable fans
• Broad OS compatibility supporting VMware ESXi, Microsoft Windows Server with Hyper-V, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Canonical Ubuntu LTS, and Citrix XenServer
• Space-saving modular architecture maximising compute density whilst simplifying cable management and infrastructure deployment

Essential Technical Specifications

• Processors: Dual Intel Xeon Silver 4214R (12 cores, 24 threads each, 2.4GHz base/3.5GHz turbo, 16.5MB cache, 100W TDP)
• Memory: 256GB DDR4 RDIMM ECC (expandable to 2TB across 16 slots)
• Storage: 2×240GB M.2 SATA SSDs in RAID 1 (BOSS controller)
• Network: Broadcom 5720 quad-port 1GbE blade network daughter card
• Management: iDRAC9 Enterprise with Group Manager, OpenManage Enterprise integration
• Security: TPM 2.0, Secure Boot, System Lockdown, cryptographically signed firmware
• Form Factor: Half-height blade for PowerEdge M1000e or VRTX chassis
• Dimensions: 197.9mm (H) × 544.32mm (D) × 50.35mm (W)
• Weight: Maximum 6.4kg
• Operating Temperature: 10°C to 35°C (50°F to 95°F)

Operating System Flexibility

This blade server supports multiple enterprise operating systems and hypervisors, each offering distinct advantages. VMware ESXi provides industry-leading virtualisation with features like Memory Overcommitment, vMotion live migration, High Availability clustering, and comprehensive management through vCenter—ideal for organisations seeking maximum VM density and advanced features. Microsoft Windows Server with Hyper-V delivers seamless Active Directory integration, familiar management interfaces, excellent support for Windows-based applications, and cost-effective licensing for Microsoft-centric environments. Linux distributions (Red Hat Enterprise Linux, SUSE, Ubuntu) offer exceptional stability, lower resource overhead, superior security track records, and extensive customisation options—perfect for web hosting, containerised applications, and open-source software stacks.

Reboot IT Quality Assurance

Every Dell PowerEdge M640 blade server undergoes Reboot IT's rigorous Verified Refurb certification process, ensuring reliable performance and peace of mind. As an industry expert since 2001, Reboot IT employs cutting-edge diagnostic testing software to comprehensively evaluate all server features and functions. Our thorough refurbishment process includes SMART diagnostics for storage health, CMOS validation, POST verification, memory testing at optimal speeds, processor stress testing, network connectivity verification, firmware authentication, and comprehensive hardware functionality checks. All previous data is securely erased through multiple-pass data deletion procedures, and factory settings are restored with the latest firmware updates.

This certified refurbished unit is backed by a comprehensive 1-year warranty from Reboot IT, providing coverage and support for your investment. Each server is cosmetically graded to ensure transparency about its physical condition. Excellent Grade servers show minimal signs of use with no deep scratches, cracks, paint chips, or broken/missing pieces—appearing nearly new. Good Grade servers remain fully operational but may feature light scratches on the external housing, more visible signs of wear than Excellent Grade units, and possibly small dings, dents, or minor paint chips on external surfaces. Regardless of cosmetic grade, all servers deliver identical performance and reliability.

Invest in Sustainable, Certified Enterprise Technology

Choose certified refurbished technology from Reboot IT and access premium Dell PowerEdge performance at a fraction of new equipment costs whilst supporting environmental sustainability through extended product lifecycles. Our comprehensive testing ensures this blade server meets stringent quality standards and performs reliably for demanding enterprise applications. With flexible operating system support, enterprise-grade security features, and advanced remote management capabilities, the PowerEdge M640 delivers the performance and reliability your business requires.

Order your certified refurbished Dell PowerEdge M640 blade server today and experience enterprise computing excellence backed by Reboot IT's 1-year warranty and expert support.