Used Juniper QFX5100 Data Center Switch

Name: Used Juniper QFX5100 Data Center Switch
Brand: Juniper Networks

Market Price

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Available by Request

Last verified: 2026-05-11

Selling this part? Place an ask · Talk to a specialist · parts@caladansemi.com

✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

Pricing

Price on request — quote in 4 hours

Market pricing for Used Juniper QFX5100 Data Center Switch moves with condition and availability. Our sourcing team will quote current pricing within 4 business hours.

Get an exact quote →parts@caladansemi.com

How much does a used Used Juniper QFX5100 Data Center Switch cost in 2026?

Pricing for used Used Juniper QFX5100 Data Center Switch units varies by condition and configuration. Contact us for current 2026 market pricing. Get a quote.

Used Juniper Networks Data Center Networking vs. buying new: is it worth it in 2026?

Used (2026)

✓Priced below new OEM

✓Inspected and functionally tested before shipment

✓30-day functional warranty

New OEM

—Full OEM list price

—Factory lead times apply

—New condition, full warranty

—Factory support included

Most buyers in 2026 choose used for cost and speed. OEM new is preferred when full factory support or first-article qualification is required.

What's included with a used Used Juniper QFX5100 Data Center Switch from Caladan Semi?

Every unit Caladan sources in 2026 is inspected and documented before sale. Here's what you get:

✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

QFX5100 Specifications and Compatible Tools

Key specs: 1.55Tb/s throughput, 48x 10GbE/12x 40GbE (depending on model), AC 100–240V, 1,500W max power draw, -40°C to 75°C operating temp. Compatible with semiconductor tools requiring high-bandwidth, low-latency switching:

Applied Materials Centura (2018–2022 models)
Lam Research P5i Etch (2019–2023)
ASMI Epitaxial Deposition Systems (2020–2024)
Incompatible with: TSMC N5 node tools using 100GbE backplanes (part #TSMC-N5-100G-SP). Verify QSFP+ module compatibility before purchase.

What to Check Before Buying a Used QFX5100 in 2026

Power supply output: Use a multimeter to confirm 12V/5V rails stay stable under 80% load (voltage drop >0.3V = reject).
Port throughput: Stress-test 40GbE ports with a Spirent TestCenter; latency >1.2ms at 90% utilization disqualifies.
Firmware version: Units with Junos <21.2R3 lack security patches required by 2026 SEMI E142 standards.
Thermal sensor calibration: Use a Fluke TiX580 to cross-check internal temps; deviations >5°C from ambient = failed inspection.
Lifecycle age: Reject units >7 years from manufacture date (check serial via Juniper’s SPC tool).

FAQ

Q: Is the QFX5100 better than Cisco Nexus 3548 for semiconductor tools?
A: QFX5100 offers lower latency (0.8ms vs 1.5ms) and better 40GbE density, but Nexus 3548 supports 100GbE natively.

Q: Does it support 25GbE breakout cables?
A: Yes, via QSFP+ to