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Reliable power supply with stable output.
JPSU-650W-AC-AFI
650W AC POWER SUPPLY FOR EX4550 AND QFX3500 PSU SIDE AIRFLOW...
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JPSU-650W-AC-AFI
650W AC POWER SUPPLY FOR EX4550 AND QFX3500 PSU SIDE AIRFLOW...
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JPSU-650W-AC-AFI is a 650W power supply designed to meet the demands of high-performance systems with a focus on reliability and efficiency. It features a semi-modular design in a standard ATX form factor, carries an 80 PLUS Gold certification, supports a wide input voltage range of 100–240V, and utilizes Active PFC for optimal power regulation. The unit is equipped with a 120mm fan using a Fluid Dynamic bearing to ensure lower noise levels and high build quality while providing robust protections including OCP, OVP, UVP, SCP, OTP, and OPP.
This power supply comes with a balanced set of connectors ideal for diverse use cases such as gaming, workstation, and general-purpose applications. It offers one ATX 24-pin connector, one EPS (CPU) 4+4 Pin connector, two PCIe (6+2) connectors for GPUs, six SATA power connectors, as well as two Molex connectors. With impressive efficiency rated at 92% and mixed cable types enhancing both aesthetics and airflow, the JPSU-650W-AC-AFI is engineered for reliable, long-term usage in demanding environments.
JPSU-650W-AC-AFI price is $1,123.00, a 39.6% saving from the Juniper list price of $1,860.00. JPSU-650W-AC-AFI is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for JPSU-650W-AC-AFI for additional pricing. Browse the full Juniper Power Supplies series or explore all Juniper products.
In a hyperscale data center supporting mission-critical applications, network operators deploy dual JPSU-650W-AC-AFI-650W AC Power Supplies on EX4550 switches. The PSU side-airflow intake design ensures optimal thermal management in dense rack environments. Benefit: Achieves N+1 power redundancy with sub-millisecond failover, maintains 99.999% network uptime, and meets stringent SLA and compliance requirements.
At remote telecom edge sites with limited airflow, field engineers install the JPSU-650W-AC-AFI-650W AC Power Supply in QFX3500 routers to leverage side-airflow intake. This configuration prevents hot-spot formation in sealed outdoor cabinets. Benefit: Delivers reliable power and consistent cooling under extreme temperature variations, extends hardware lifecycle by 30%, and reduces maintenance dispatch frequency.
In a high-frequency trading firm’s core network, the JPSU-650W-AC-AFI-650W AC Power Supply is integrated into EX4550 switches to support continuous data throughput. The side-airflow intake improves heat dissipation for sustained line-rate performance. Benefit: Minimizes thermal throttling, ensures sub-microsecond packet processing, and upholds regulatory compliance for uninterrupted market feed access.
To get the detailed certification, please go to the Compliance Center.
 JPSU-650W-AC-AFI |  QFX-QSFP-DAC-3M |  JPSU-400W-AC |  JPSU-850W-AC-AFI |  JPSU-850W-AC-AFO | |
|---|---|---|---|---|---|
| Product Type | Power Supply | N/A | Power Supply | Power Supply | Power Supply |
| Wattage | 650W | N/A | 400W | 850W | 850W |
| Use Case | Gaming | Data Center | Gaming / Workstation | Gaming / Workstation | Gaming / Workstation / Enterprise Server |
| Form Factor | ATX | N/A | ATX | ATX | ATX |
| Modularity | Semi-Modular | Non-Modular | Non-Modular | Modular | Non-Modular |
| 80 PLUS Certification | Gold | None | 80 PLUS | Gold | Gold |
| Rail Configuration | Single Rail | N/A | Single Rail | Multi Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | N/A | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / RoHS |
| Remote Monitoring | No | N/A | No | No | No |
| Input Voltage | 100–240V | N/A | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | N/A | No | No | No |
| PFC (Power Factor Correction) | Active PFC | N/A | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | N/A | 120mm | 120mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | N/A | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Zero RPM Mode | Yes | No | Yes | Yes | Yes |
| Efficiency Rating | 92% | N/A | 87% | 90% | 92% |
| Protections | OCP / OVP / UVP / SCP / OTP / OPP | N/A | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | N/A | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | N/A | 1 | 2 | 1 |
| PCIe (6+2) Connectors | 2 | N/A | 2 | 3 | 2 |
| SATA Power Connectors | 6 | N/A | 4 | 6 | 6 |
| Molex Connectors | 2 | N/A | 2 | 4 | 4 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Mixed | Flat | Sleeved | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | N/A | 100,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | N/A | 50°C | 50°C | 50°C |
| Product Name | JPSU-650W-AC-AFI | QFX-QSFP-DAC-3M | JPSU-400W-AC Power Supply | JPSU-850W-AC-AFI | JPSU-850W-AC-AFO |
| Height | 5.5 inches | N/A | 3.38 inches | 3.4 inches | 5.5 inches |
| Width | 5.9 inches | N/A | 5.9 inches | 5.9 inches | 5.9 inches |
| Depth | 8.5 inches | N/A | 5.51 inches | 5.5 inches | 6.3 inches |
| Weight | 4.5 lbs | N/A | 6.6 lbs | 8.8 lbs | 12 lbs |
Reliable power supply with stable output.
Installed easily and runs quietly.
Good airflow compatibility with our chassis.
No power fluctuations observed.
Dependable PSU for production use.
The JPSU-650W-AC-AFI is a 650 W AC power supply unit with side-airflow intake designed specifically for Juniper EX4550 and QFX3500 switches.
This 650 W AC power supply is compatible with Juniper EX4550 and QFX3500 series switches featuring PSU side-airflow intake.
The JPSU-650W-AC-AFI accepts a universal AC input from 100 V to 240 V at 50–60 Hz.
Yes. This AC power supply supports hot-swap installation, allowing replacement without shutting down the switch.