Dell Dell Poweredge Mx740C Blade Server Chassis — High-Density Server Housing for Modular Data Centers (Dell)

How Much Does Dell PowerEdge MX740c Blade Server Chassis Cost in 2026?

As of July 2026, the Dell PowerEdge MX740c Blade Server Chassis is available in the used and refurbished market for an average of $243. This price is typically for units in condition grade B, which means they’ve been tested and may have minor cosmetic wear but function reliably. Refurbished units from vendors like Axus Technology and Covalent Materials are commonly priced in this range, offering buyers a 40–60% savings compared to new units, which typically retail for $500–$600 from Dell or authorized resellers.

The price can vary slightly depending on the unit’s condition and included accessories. For example, a fully tested unit with all original mounting rails and power cabling may command up to $260, while a unit missing components might be listed for as low as $230. However, it’s important to note that a poorly sourced or untested chassis can lead to $1,500–$2,000 in downtime costs if it fails during deployment. Always verify the unit has been tested for full blade compatibility and power draw. Units with more than 10,000 operational hours should be inspected closely, as they may have higher failure rates.

Dell PowerEdge MX740c Blade Server Chassis Specifications and Compatible Tools

The Dell PowerEdge MX740c is a 10U chassis designed to hold up to 14 blade servers and 2 storage blades, making it ideal for high-density compute environments. It supports up to 12 kW of power draw and features redundant 1+1 1500W power supplies, which are critical for fault-tolerant operations. The chassis is typically rated for 10,000–15,000 operational hours before requiring major maintenance.

This chassis is compatible with a range of Dell blade servers, including the PowerEdge MX7000 series (2018–2021 production years) and M640c blades. It also supports Dell EMC storage blades such as the Dell EMC SC5020. However, it is not compatible with the Dell PowerEdge R750 rack server, which is a full-height rack unit and cannot fit into blade chassis.

Failure to verify compatibility can result in $3,000–$5,000 in rack reconfiguration and downtime costs. Always check the blade model and firmware compatibility before installation. The chassis also includes 10GbE and 40GbE networking options, but these should be verified with the seller, as some used units may have outdated or missing network modules.

What to Check Before Buying a Used Dell PowerEdge MX740c Blade Server Chassis in 2026

1. Verify the production year – Units produced before 2019 may have lower-quality power supplies. A chassis older than 2019 should be inspected for corrosion and wear.

2. Check the power supply health – Use a Dell PSU tester or a Fluke 434 II Power Quality Analyzer to verify output stability. Reject any unit with a power supply that shows more than 10% voltage deviation.

3. Inspect blade compatibility – Confirm the chassis supports the blade models you intend to use. A mismatch can lead to $2,500–$4,000 in blade reconfiguration costs.

4. Test the cooling system – Use a Thermal Imaging Camera to check airflow and hotspots. A malfunctioning fan can lead to overheating and blade failures.

5. Reject if the chassis has more than 12,000 operational hours – Units beyond this threshold are more likely to fail within 6–12 months of deployment.

Failure to follow these steps can result in $5,000–$8,000 in downtime and repair costs. Always request a full test report and ask for a return policy that covers at least 30 days of operation.

FAQ

Q: Can I use the Dell MX740c with blades from other manufacturers?
A: No. The MX740c is specifically designed for Dell blade servers and storage blades. Using non-Dell blades can cause $4,000–$6,000 in compatibility and power draw issues.

Q: Should I buy a used MX740c if I need it for a mission-critical application?
A: Yes, but only if the unit has been tested for at least 100 hours under load and has less than 8,000 operational hours. Units beyond this threshold are more likely to fail within 6 months.

Q: How long can I expect a used MX740c to last in a data center?
A: With proper maintenance, a used MX740c can last 4–6 years in a data center. Beyond that, power supply and fan failures become more frequent, costing $2,000–$3,000 per year in repairs.

Q: Is the MX740c better than the MX700c for blade server deployments?
A: Yes. The MX740c supports more blades and has better power management. The MX700c, produced before 2017, lacks redundant power supplies in some models, increasing the risk of $1,500–$2,500 in unplanned downtime.

Q: What’s the difference in cost between a used MX740c and a new one?
A: A used MX740c typically costs $243, while a new one is around $550. The used unit offers a 55% savings, but ensure it has been fully tested and certified.