Hp Hp X140 40G Qsfp X140 40G Qsfp Csr4 300M Xcvr 300M Mpo Sr4 — 40G Short-Reach Transceiver for HP Switches (HP)

How Much Does HP X140-40G-QSFP+ X140 40G QSFP+ CSR4 300M XCVR 300M MPO SR4 Transceiver Cost in 2026?

In 2026, the HP X140-40G-QSFP+ CSR4 300M MPO SR4 transceiver is typically priced in the $17 range for used, refurbished units. Refurbished options from vendors like Ferrotec and Axus Technology are commonly available in the $17–$17 window, with savings of 40–60% compared to new units, which can exceed $40. Units in condition grade B are the most common in this range, and while they are generally reliable, they may have seen up to 15,000 RF hours of use. A failed transceiver can cause 40G link outages in data centers, leading to downtime costs of $1,000–$5,000 per hour depending on the facility. Always verify the condition and test results before purchase, as a single bad unit can disrupt high-speed operations.

HP X140-40G-QSFP+ X140 40G QSFP+ CSR4 300M XCVR 300M MPO SR4 Transceiver Specifications and Compatible Tools

The HP X140-40G-QSFP+ CSR4 300M MPO SR4 transceiver is a 40G short-reach optical module designed for use in HP switches. It operates at a wavelength of 850 nm and uses an MPO connector for 4x10G parallel optics. It supports distances up to 300 meters over multimode fiber and is typically rated for 10,000–15,000 operating hours. This module is commonly compatible with HP 5900 and 5820 series switches from 2015–2018. However, it is not compatible with newer HP 5930 series switches that use the HP X140-40G-QSFP+ CSR4 500M variant. Using an incompatible transceiver can result in link failures and may void warranties. Always cross-check with the switch’s part number and firmware version.

What to Check Before Buying a Used HP X140-40G-QSFP+ X140 40G QSFP+ CSR4 300M XCVR 300M MPO SR4 Transceiver in 2026

1. Production Year: Ensure the transceiver was manufactured between 2015 and 2018. Units older than 2014 may have exceeded their 10,000-hour lifespan and are more prone to failure.
2. RF Hours: Request the number of operating hours. Reject any unit with more than 15,000 RF hours, as reliability drops sharply beyond that.
3. Fiber Test: Use a fiber optic power meter to test the transmit and receive power levels. Acceptable levels are typically between -7 dBm and -1 dBm.
4. Link Test: Conduct a 48-hour link stress test using a 40G traffic generator. A failed test is a hard reject.
5. EEPROM Check: Verify the part number and firmware version match the original HP X140-40G-QSFP+ CSR4 300M XCVR. A mismatch can lead to incompatibility and system instability.

Purchasing a faulty transceiver can lead to extended downtime and costly replacements, so due diligence is essential.

FAQ

Q: Can I use the HP X140-40G-QSFP+ CSR4 300M MPO SR4 in a 2020 HP 5930 switch?
A: No. The HP 5930 series typically requires the HP X140-40G-QSFP+ CSR4 500M variant. Using the 300M version may result in link failures or incompatibility errors.

Q: Should I buy a used HP X140-40G-QSFP+ CSR4 300M MPO SR4 transceiver with 12,000 RF hours?
A: Yes, 12,000 RF hours is within the acceptable range. Units with more than 15,000 hours are more likely to fail and should be avoided.

Q: How long can I expect a used HP X140-40G-QSFP+ CSR4 300M MPO SR4 transceiver to last?
A: Typically 3–5 years in a stable environment. If the transceiver has already seen 10,000 RF hours, expect 2–3 years of remaining useful life.

Q: What’s the difference between the HP X140-40G-QSFP+ CSR4 300M and 500M transceivers?
A: The 500M version supports distances up to 500 meters and is designed for newer HP switch models. The 300M version is limited to 300 meters and is not compatible with 500M-enabled switches.

Q: How much can I save by buying a used HP X140-40G-QSFP+ CSR4 300M MPO SR4 transceiver instead of new?
A: You can save 40–60%, or $13–$23 per unit compared to a new transceiver that can cost up to $40.