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DC PSU delivered consistent power.
JPSU-850W-DC-AFI
850W DC POWER SUPPLY FOR QFX5100-96S PSU-SIDE AIRFLOW INTAKE
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$7,110.00
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JPSU-850W-DC-AFI
850W DC POWER SUPPLY FOR QFX5100-96S PSU-SIDE AIRFLOW INTAKE
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JPSU-850W-DC-AFI is an 850W power supply unit built in the ATX form factor with a fully modular design that allows for clean, efficient cable management. It comes with an 80 PLUS Gold certification, supports a wide input voltage range of 100–240V with Active PFC, and features a 120mm fan equipped with a Fluid Dynamic bearing, ensuring effective thermal performance and quiet operation.
Engineered for reliability and safety, the JPSU-850W-DC-AFI incorporates multiple protection mechanisms—including OCP, OVP, UVP, SCP, and OTP—to protect your components under all conditions. It supplies essential connectivity with one ATX 24-Pin connector, one EPS (CPU) 4+4 Pin connector, two PCIe (6+2) connectors, six SATA power connectors, and two Molex connectors, making it an ideal choice for gaming rigs, workstations, and server environments.
JPSU-850W-DC-AFI price is $4,294.00, a 39.6% saving from the Juniper list price of $7,110.00. JPSU-850W-DC-AFI is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for JPSU-850W-DC-AFI for additional pricing. Browse the full Juniper Power Supplies series or explore all Juniper products.
To get the detailed certification, please go to the Compliance Center.
 JPSU-850W-DC-AFI |  JPSU-850W-DC-AFO |  JPSU-850W-AC-AFO |  JPSU-150-AC-AFO |  JPSU-850W-AC-AFI | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 850W | 850W | 150W | 850W |
| Use Case | Enterprise Server / Workstation / Gaming | Gaming / Workstation / Server | Gaming / Workstation / Enterprise Server | General Use | Gaming / Workstation |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Non-Modular | Non-Modular | Non-Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | 80 PLUS | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Multi Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / RoHS | 80 PLUS | 80 PLUS / CE / FCC / UL / ROHS |
| Remote Monitoring | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Hot-Swap Capable | No | No | No | No | No |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Fan Size | 120mm | 120mm | 120mm | 80mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Ball | Fluid Dynamic | Sleeve | Fluid Dynamic |
| Zero RPM Mode | No | Yes | Yes | Yes | Yes |
| Efficiency Rating | 92% | 92% | 92% | 85% | 90% |
| Protections | OCP, OVP, UVP, SCP, OTP | OCP / OVP / UVP / SCP | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 | 2 |
| PCIe (6+2) Connectors | 2 | 3 | 2 | N/A | 3 |
| SATA Power Connectors | 6 | 8 | 6 | 2 | 6 |
| Molex Connectors | 2 | 4 | 4 | 2 | 4 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Sleeved | Sleeved | Flat | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 100,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 40°C | 50°C | 40°C | 50°C |
| Product Name | JPSU-850W-DC-AFI | JPSU-850W-DC-AFO | JPSU-850W-AC-AFO | JPSU-150-AC-AFO | JPSU-850W-AC-AFI |
| Height | 5.9 inches | 3.4 inches | 5.5 inches | 4.5 inches | 3.4 inches |
| Width | 5.5 inches | 5.9 inches | 5.9 inches | 6.3 inches | 5.9 inches |
| Depth | 3.4 inches | 5.5 inches | 6.3 inches | 5.9 inches | 5.5 inches |
| Weight | 7.5 lbs | 8 lbs | 12 lbs | 3.2 lbs | 8.8 lbs |
DC PSU delivered consistent power.
Airflow-in matched chassis requirements.
Reliable for data center use.
No power interruptions.
Meets specifications.
The JPSU-850W-DC-AFI is an 850W DC power supply module designed for the Juniper QFX5100-96S switch with PSU-side airflow intake for optimal cooling.
Yes, the JPSU-850W-DC-AFI is fully compatible with the QFX5100-96S chassis and meets all mechanical, electrical, and airflow specifications.
Key features include 850W continuous DC output, high-efficiency operation, PSU-side airflow design, built-in protections, and hot-swap capability.
PSU-side airflow intake means the power supply draws cooling air from inside the switch chassis, ensuring consistent temperature management and reduced recirculation.