Juniper Juniper Jxu 8Ge Tx S 8 Port Gigabit Ethernet Module — High-Density Networking Solution (Juniper)

How Much Does Juniper JXU-8GE-TX-S 8 Port Gigabit Ethernet Module Cost in 2026?

As of July 2026, the Juniper JXU-8GE-TX-S 8 Port Gigabit Ethernet Module is priced at $838 for a used, refurbished unit in condition grade B. This price is consistent across most secondary market vendors, including Axus Technology and Ferrotec, both of which are known for their high-quality refurbishment processes. New units, if still available, typically range from $1,900 to $2,200, meaning buyers can save between 40–60% by opting for a used, well-maintained module.

The cost of failure is significant: a single module failure in a high-traffic network can lead to downtime of 8–12 hours and cost an enterprise between $5,000 and $10,000 in lost productivity. It’s important to note that while the price is fixed at $838, the condition of the module can vary. A grade B unit typically has minor cosmetic wear and may have been used in a non-critical environment, but it should still perform reliably under standard operating conditions.

Juniper JXU-8GE-TX-S 8 Port Gigabit Ethernet Module Specifications and Compatible Tools

The Juniper JXU-8GE-TX-S is an 8-port Gigabit Ethernet module designed for use in Juniper EX Series switches, typically the EX4300 and EX3400 models. It supports 10/100/1000BASE-T and is commonly used in environments requiring high port density and reliable, low-latency switching. The module typically has a service life of around 10–12 years under normal conditions, though this can vary depending on environmental factors and usage patterns.

This module is compatible with Juniper EX4300 switches produced between 2015 and 2020. It is not compatible with the newer EX4600 series, which uses a different form factor and power requirements. Using an incompatible module can lead to a failed boot sequence or a complete switch failure, which can cost upwards of $15,000 in repair and downtime.

Verify with the seller that the module is from a 2015–2020 production batch and has been tested for signal integrity and power draw. Modules from later years may not function correctly due to hardware revisions.

What to Check Before Buying a Used Juniper JXU-8GE-TX-S 8 Port Gigabit Ethernet Module in 2026

1. Production Year: Ensure the module was produced between 2015 and 2020. Modules from 2021 or later may not be compatible with older switch models.

2. Signal Integrity Test: Ask the seller if the module has passed a Bit Error Rate Test (BERT) at 1 Gbps. A failure here indicates potential signal degradation and should be a hard reject.

3. Power Draw: Confirm the module draws no more than 15W under load. Modules that exceed this threshold can overload the switch’s power supply and cause a system shutdown.

4. Firmware Version: Check that the firmware is at least version 13.2R10. Older versions may not support newer switch features and can cause instability.

5. Physical Inspection: Look for signs of overheating, such as discolored PCBs or melted solder. Reject any module with visible damage to the RJ-45 ports or power connectors.

Failing to verify these factors can result in a defective module, which could lead to a cascading failure in the switch and cost up to $12,000 in downtime and repairs.

FAQ

Q: Can I use the Juniper JXU-8GE-TX-S in an EX4600 switch?
A: No. The EX4600 uses a different module form factor and power architecture. Attempting to install the JXU-8GE-TX-S in an EX4600 can cause a boot failure and damage the switch, costing up to $10,000 in repairs.

Q: Should I buy a used Juniper JXU-8GE-TX-S module with firmware older than 13.2R10?
A: No. Firmware versions older than 13.2R10 may lack critical stability and security patches. This can lead to intermittent outages and potential vulnerabilities, costing $3,000–$5,000 in unplanned maintenance.

Q: How long can I expect a used Juniper JXU-8GE-TX-S module to last?
A: With proper maintenance and under normal operating conditions, a used module from the 2015–2020 production batch can last another 5–7 years. Modules with high thermal stress or poor power history may fail in as little as 2 years.

Q: What’s the difference between a Juniper JXU-8GE-TX-S and a JXU-8GE-TX?
A: The JXU-8GE-TX-S is a later revision with improved power efficiency and firmware support. The JXU-8GE-TX is typically from 2013–2014 and may not support newer switch features, increasing the risk of instability.

Q: How much can I save by buying a used Juniper JXU-8GE-TX-S module?
A: You can save between 40–60% compared to a new unit. A used module at $838 versus a new one at $2,200 represents a $1,362 saving per unit.