Used Juniper QFX5100 Data Center Switch

Name: Used Juniper QFX5100 Data Center Switch
Brand: Juniper Networks
Price: 340 USD
Availability: InStock

Market Price

→ Stable

1 active listing

From $340

Typical secondary market pricing · USD

Low $340Avg $340High $340

Save 50-70% vs OEM new

Aggregated from secondary market sources · Not a guaranteed offer

Available by Request

Last verified: 2026-05-11

Request Quote · $340 – $340

Talk to a specialist · parts@caladansemi.com

✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

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

A used Used Juniper QFX5100 Data Center Switch from Juniper Networks typically sells for $340 – $340 on the secondary market in 2026. That's a savings of 50-70% compared to new OEM pricing. Prices vary based on condition, firmware version, and included accessories. Request a quote for current availability.

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

Used (2026)

✓Save 50-70% vs. new OEM

✓Lead time: 2-4 weeks

✓Condition: B grade

✓30-day functional warranty

New OEM

—Full OEM price (1–2.5× used)

—Lead times: 12–52 weeks

—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:

✓Grade B — good working condition, normal wear
✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Estimated lead time: 2-4 weeks after sourcing confirmation
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

How Much Does Used Juniper QFX5100 Cost in 2026?

Used QFX5100 switches will retail between $2,000–$9,500 in 2026, depending on port configuration (24/40GbE mix) and included PSUs. Refurbished units with factory warranty (1–3 years) will cost $1,200–$6,000, saving buyers 80–85% versus new (list price ~$15,000). Units with dual 1,500W power supplies and 36x 40GbE ports command the highest premium. Caveat: Units with firmware older than Junos 22.4R1 will require costly upgrades for compatibility with 2026-era tools.

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