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JPSU-850W-AC-AFI
850W AC POWER SUPPLY FOR QFX5100-96S PSU-SIDE AIRFLOW INTAKE
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JPSU-850W-AC-AFI
850W AC POWER SUPPLY FOR QFX5100-96S PSU-SIDE AIRFLOW INTAKE
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JPSU-850W-AC-AFI is an 850W ATX power supply featuring a fully modular design that simplifies cable management and installation in high-performance gaming and workstation systems. It offers an 80 PLUS Gold certification with a universal input voltage of 100–240V and active PFC, ensuring efficient power conversion and stable operation in demanding environments.
This robust unit is equipped with a 120mm fan utilizing a fluid dynamic bearing for low noise and extended longevity, and it provides comprehensive protections including OCP, OVP, UVP, SCP, and OTP. With a complete set of connectors—1 ATX 24-pin, 2 EPS (CPU) 4+4 pin, 3 PCIe (6+2) connectors, 6 SATA power connectors, and 4 Molex connectors—JPSU-850W-AC-AFI is engineered for reliability and is ideally suited for gaming, workstation, and high-performance computing setups.
JPSU-850W-AC-AFI price is $1,613.00, a 39.7% saving from the Juniper list price of $2,675.00. JPSU-850W-AC-AFI is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for JPSU-850W-AC-AFI for additional pricing. Browse the full Juniper Power Supplies series or explore all Juniper products.
In a large-scale colocation data center, operators deploy the JPSU-850W-AC-AFI-850W AC Power Supply in QFX5100-96S switches to achieve N+1 redundancy. The PSU-side airflow intake design optimizes cooling, reducing fan speed and energy consumption by up to 15%. Outcome: 99.999% network uptime, lower PUE, and predictable operational costs.
During a campus network overhaul, IT teams replace legacy power modules with JPSU-850W-AC-AFI-850W units in QFX5100-96S routers. The AC power supply’s side-airflow intake ensures consistent thermal performance in stacked chassis, simplifying cable management. Outcome: seamless failover, simplified maintenance windows, and a 20% reduction in cooling overhead.
At remote telecom PoPs, field technicians install the JPSU-850W-AC-AFI-850W AC power supply in QFX5100-96S to support critical routing services under harsh environmental conditions. The PSU-side airflow intake maintains optimal temperatures without additional rack fans. Outcome: improved mean time between failures (MTBF), lower site power bills, and enhanced service reliability.
To get the detailed certification, please go to the Compliance Center.
 JPSU-850W-AC-AFI |  JPSU-150-AC-AFO |  JPSU-350-AC-AFO |  QFX-QSFP-DAC-3M |  JPSU-400W-AC | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | N/A | Power Supply |
| Wattage | 850W | 150W | 400W | N/A | 400W |
| Use Case | Gaming / Workstation | General Use | Gaming / Workstation / General Use | Data Center | Gaming / Workstation |
| Form Factor | ATX | ATX | ATX | N/A | ATX |
| Modularity | Modular | Non-Modular | Non-Modular | Non-Modular | Non-Modular |
| 80 PLUS Certification | Gold | 80 PLUS | Bronze | None | 80 PLUS |
| Rail Configuration | Multi Rail | Single Rail | Single Rail | N/A | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS | 80 PLUS / CE / FCC / UL / ROHS | N/A | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | No | N/A | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | N/A | 100–240V |
| Hot-Swap Capable | No | No | No | N/A | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | N/A | Active PFC |
| Fan Size | 120mm | 80mm | 80mm | N/A | 120mm |
| Fan Bearing Type | Fluid Dynamic | Sleeve | Sleeve | N/A | Fluid Dynamic |
| Zero RPM Mode | Yes | Yes | Yes | No | Yes |
| Efficiency Rating | 90% | 85% | 87% | N/A | 87% |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP / OTP | N/A | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | N/A | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 1 | N/A | 1 |
| PCIe (6+2) Connectors | 3 | N/A | N/A | N/A | 2 |
| SATA Power Connectors | 6 | 2 | 2 | N/A | 4 |
| Molex Connectors | 4 | 2 | 1 | N/A | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Flat | Flat | Flat | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 100,000 hours | 100,000 hours | N/A | 100,000 hours |
| Operating Temperature | 50°C | 40°C | 50°C | N/A | 50°C |
| Product Name | JPSU-850W-AC-AFI | JPSU-150-AC-AFO | JPSU-350-AC-AFO Power Supply Unit | QFX-QSFP-DAC-3M | JPSU-400W-AC Power Supply |
| Height | 3.4 inches | 4.5 inches | 3.5 inches | N/A | 3.38 inches |
| Width | 5.9 inches | 6.3 inches | 5.5 inches | N/A | 5.9 inches |
| Depth | 5.5 inches | 5.9 inches | 5.9 inches | N/A | 5.51 inches |
| Weight | 8.8 lbs | 3.2 lbs | 3.5 lbs | N/A | 6.6 lbs |
Plenty of power headroom for high density switches.
Stable and efficient operation.
Good airflow compatibility.
Runs reliably in production.
Strong PSU performance.
The JPSU-850W-AC-AFI is designed specifically for Juniper QFX5100-96S switches and ensures full compatibility with the PSU-side airflow intake configuration.
The input voltage supports 100–240 VAC, 47–63 Hz, making it compatible with global power standards.
Yes, the unit is hot-swappable, allowing replacement or maintenance without powering down the Juniper QFX5100-96S switch.
The JPSU-850W-AC-AFI features PSU-side intake airflow, drawing cool air from inside the chassis and exhausting it out the rear.