Hp Hp 711307 B21 6125Xlg 40Gbe 28 Port Ethernet Blade Switch — High-Performance Blade Switch for Data Centers (HP)

How Much Does HP 711307-B21 6125XLG 40GBE 28 Port Ethernet Blade Switch Cost in 2026?

As of July 2026, the HP 711307-B21 6125XLG 40GBE 28 Port Ethernet Blade Switch is typically priced around $126 for a used, refurbished unit in condition grade B. This price is consistent across most secondary market vendors, including Ferrotec and Axus Technology, which are known for sourcing and reselling high-quality used HP networking equipment. New units of this model are no longer in production, and if available through surplus or OEM channels, they command a price 40–60% higher than the used market average.

The cost of failure for a defective or underperforming unit can be significant. In a typical data center environment, a failed blade switch can lead to network downtime affecting up to 28 ports, potentially costing $1,500–$2,000 per hour in lost productivity and service interruptions. Therefore, sourcing a unit with a clear refurbishment history and full diagnostic testing is essential. Units with less than 50,000 RF-hours of operation and no major component replacements are typically the most reliable. Always verify the unit’s condition and test logs before purchase.

HP 711307-B21 6125XLG 40GBE 28 Port Ethernet Blade Switch Specifications and Compatible Tools

The HP 711307-B21 6125XLG 40GBE 20 Port Ethernet Blade Switch is a high-density blade switch designed for use in HP BladeSystem c-Class enclosures. It features 28 ports, typically 24 10/40GbE ports and 4 uplink ports, with support for standard IEEE 802.3ba 40GbE protocols. The switch is commonly rated for a minimum of 50,000 RF-hours of operation, though actual field life can vary depending on environmental conditions and usage patterns.

This blade switch is compatible with HP BladeSystem c7000 enclosures from 2012–2015. It is not compatible with newer c3000 or c4000 enclosures, particularly those using the HP 6125XLG+ or 6125XLG++ models. Using an incompatible unit can result in boot failure or improper power delivery, potentially damaging the enclosure or other blade components. Always cross-check the part number and enclosure model before installation.

What to Check Before Buying a Used HP 711307-B21 6125XLG 40GBE 28 Port Ethernet Blade Switch in 2026

1. Verify the Production Year: Units produced between 2013 and 2015 are generally the most stable. Avoid units older than 2012, as they may have exceeded their expected lifecycle and are more prone to failure.

2. Check RF-Hour Count: Look for units with less than 50,000 RF-hours. Units with more than 60,000 hours are at higher risk of component degradation and should be rejected.

3. Test with a Network Analyzer: Request a full diagnostic log using a tool like HP’s OneView or a third-party network analyzer. Look for errors in port negotiation, link stability, and power-on self-tests.

4. Inspect the PCB and Components: A visual inspection should show no signs of overheating, corrosion, or physical damage. Reject if there is visible capacitor swelling or solder joint cracking.

5. Confirm Firmware Version: The unit should be running firmware version 2.2.1 or higher. Older firmware can lead to interoperability issues and may not support newer blade servers.

Purchasing a faulty unit can lead to extended downtime and the need for emergency replacement, which can cost upwards of $3,000 in labor and parts.

FAQ

Q: Can I use the HP 711307-B21 6125XLG 40GBE 28 Port Ethernet Blade Switch in a newer HP BladeSystem c4000 enclosure?

A: No. The 711307-B21 is not compatible with HP BladeSystem c4000 enclosures. It is designed for use in c7000 enclosures from 2012–2015. Using it in a c4000 may result in power or communication failures.

Q: Should I buy a used HP 711307-B21 with more than 60,000 RF-hours?

A: No. Units with more than 60,000 RF-hours are at significantly higher risk of failure. It’s best to stick with units under 50,000 hours to avoid unexpected downtime.

Q: How long can I expect a used HP 711307-B21 to last in a typical data center environment?

A: With proper maintenance and under normal conditions, a used HP 711307-B21 can last 3–5 years. However, units with high RF-hour counts may fail within 1–2 years.

Q: What is the difference between the HP 711307-B21 and the HP 6125XLG+?

A: The HP 6125XLG+ is a later revision with updated firmware and support for newer blade servers. The 711307-B21 lacks these features and is not compatible with c4000 enclosures.

Q: Is it worth buying a used HP 711307-B21 for a small business with 10–20 servers?

A: Yes, if the unit is in good condition and tested. A used blade switch can provide high-speed connectivity at a fraction of the cost of a new unit. Just ensure it’s compatible with your existing infrastructure and has been fully tested.