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JPSU-850W-DC-AFI
850W DC POWER SUPPLY FOR QFX5100-96S PSU-SIDE AIRFLOW INTAKE
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Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
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.
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| JPSU-850W-DC-AFI |  JPSU-850W-DC-AFO |  JPSU-850W-AC-AFO |  JPSU-150-AC-AFO |  JPSU-850W-AC-AFI | |
|---|---|---|---|---|---|
| 80 PLUS Certification | Gold | Gold | Gold | 80 PLUS | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Sleeved | Sleeved | Sleeved | Flat | Sleeved |
| 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 |
| Depth | 3.4 inches | 5.5 inches | 6.3 inches | 5.9 inches | 5.5 inches |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 | 2 |
| Efficiency Rating | 92% | 92% | 92% | 85% | 90% |
| Fan Bearing Type | Fluid Dynamic | Ball | Fluid Dynamic | Sleeve | Fluid Dynamic |
| Fan Size | 120mm | 120mm | 120mm | 80mm | 120mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | 5.9 inches | 3.4 inches | 5.5 inches | 4.5 inches | 3.4 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 100,000 hours | 150,000 hours |
| Modularity | Modular | Non-Modular | Non-Modular | Non-Modular | Modular |
| Molex Connectors | 2 | 4 | 4 | 2 | 4 |
| Operating Temperature | 50°C | 40°C | 50°C | 40°C | 50°C |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | 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 |
| Protections | OCP, OVP, UVP, SCP, OTP | OCP / OVP / UVP / SCP | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP |
| RGB Lighting | No | No | No | No | No |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Multi Rail |
| Remote Monitoring | No | No | No | No | No |
| SATA Power Connectors | 6 | 8 | 6 | 2 | 6 |
| Use Case | Enterprise Server / Workstation / Gaming | Gaming / Workstation / Server | Gaming / Workstation / Enterprise Server | General Use | Gaming / Workstation |
| Wattage | 850W | 850W | 850W | 150W | 850W |
| Weight | 7.5 lbs | 8 lbs | 12 lbs | 3.2 lbs | 8.8 lbs |
| Width | 5.5 inches | 5.9 inches | 5.9 inches | 6.3 inches | 5.9 inches |
| Zero RPM Mode | No | Yes | Yes | Yes | Yes |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
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.
Sliding guides and captive screws align the module; simply insert it into the PSU bay until it clicks, then secure with the front-panel latch.
The module supports a DC input range of –40V to –72V, accommodating a variety of telecom and data-center power standards.
The JPSU-850W-DC-AFI meets 80 Plus Platinum efficiency, delivering up to 94% conversion at typical loads.
Yes, it includes over-voltage, over-current, short-circuit, and over-temperature protections to safeguard both the PSU and the switch.
Yes, the JPSU-850W-DC-AFI supports hot-swap operation, allowing replacement without interrupting switch operation when redundancy is enabled.
By drawing intake air directly from the chassis, the PSU-side airflow design maintains a consistent thermal environment and reduces internal recirculation.
The module operates reliably between 0°C and 65°C (32°F to 149°F) when installed in a properly ventilated rack.
The JPSU-850W-DC-AFI has a Mean Time Between Failures (MTBF) of over 300,000 hours under standard operating conditions.
It carries UL, CE, CB, and RoHS certifications, ensuring compliance with international safety and environmental standards.
Check LED status indicators, verify DC input voltage, ensure proper insertion, and consult the switch’s system log for error codes.
Yes, it includes a one-year limited warranty backed by the manufacturer’s global support network.
Authorized Juniper partners, certified resellers, and the official Juniper online store stock the JPSU-850W-DC-AFI.
United States
