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JL821A
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Aruba - Power supply - DC 12 - 48 V - 240 Watt
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Name:
JL821A
- Description:
- Aruba - Power supply - DC 12 - 48 V - 240 Watt
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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JL821A Overview
JL821A is an 850W modular ATX power supply that comes 80 PLUS Gold certified with an input voltage range of 110–240V and features Active PFC. It is built with a high-quality, robust design using a 120mm fan equipped with a fluid dynamic bearing, along with comprehensive protections including OCP, OVP, SCP, and OTP. The unit provides a range of connectors such as a single ATX 24-pin connector, dual EPS (CPU) 4+4 Pin connectors, dual PCIe (6+2) connectors, six SATA power connectors, and four Molex connectors.
JL821A is engineered for high-performance use cases including gaming and workstations, combining premium build quality with low noise levels and excellent efficiency rated at 92%. The power supply features sleeved cables for improved cable management and durability, ensuring stable power delivery and reliability under demanding workloads.
JL821A price is is available on request. Get immediate quote.
Request bulk order quote for JL821A for additional pricing. Browse the full Hpe Power Supplies series or explore all Hpe products.
JL821A Specifications
- Product Type
- Power Supply
- Brand
- Hpe
- Wattage
- 850W
- Use Case
- Gaming / Workstation / General Use
- Form Factor
- ATX
- Modularity
- Modular
- 80 PLUS Certification
- Gold
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS / CE / FCC / UL / ROHS
- Input Voltage
- 110–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 120mm
- Fan Bearing Type
- Fluid Dynamic
- Zero RPM Mode
- Yes
- Efficiency Rating
- 92%
- Protections
- OCP / OVP / SCP / OTP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 2
- PCIe (6+2) Connectors
- 2
- SATA Power Connectors
- 6
- Molex Connectors
- 4
- Floppy Connector
- No
- Cable Type
- Sleeved
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 150,000 hours
- Operating Temperature
- 50°C
- Product Name
- JL821A 850W Modular ATX Power Supply
- Height
- 5.5 inches
- Width
- 5.9 inches
- Depth
- 8.3 inches
- Weight
- 4.8 lbs
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Product Comparison Table 
| JL821A |  JG544A |  656362-B21 |  J9443A |  JG136A | |
|---|---|---|---|---|---|
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Wattage | 850W | 550W | 850W | 850W | 750W |
| Use Case | Gaming / Workstation / General Use | Gaming / Workstation | Enterprise Server / Workstation / Gaming | Gaming / Workstation | Gaming |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Modularity | Modular | Semi-Modular | Modular | Semi-Modular | Modular |
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | UL | UL |
| Input Voltage | 110–240V | 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 | 135mm | 120mm |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Dual Ball | Dual Ball |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
| Efficiency Rating | 92% | 92% | 94% | 92% | 94% |
| Protections | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / SCP | OCP/OVP/UVP/OPP | OCP / OVP / SCP |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| EPS (CPU) 4+4 Pin | 2 | 1 | 2 | 1 | 1 |
| PCIe (6+2) Connectors | 2 | 2 | 3 | 2 | 2 |
| SATA Power Connectors | 6 | 4 | 6 | 6 | 6 |
| Molex Connectors | 4 | 2 | 4 | 4 | 2 |
| Floppy Connector | No | No | No | No | No |
| Cable Type | Sleeved | Flat | Sleeved | Sleeved | Sleeved |
| RGB Lighting | No | No | No | No | No |
| MTBF (Mean Time Between Failures) | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 50°C |
| Product Name | JL821A 850W Modular ATX Power Supply | JG544A 550W Semi-Modular ATX Power Supply | 656362-B21 High Performance Modular Power Supply | J9443A High-Performance ATX Power Supply | JG136A High Performance Modular Power Supply |
| Height | 5.5 inches | 5.5 inches | 5 inches | 5.5 inches | 5.5 inches |
| Width | 5.9 inches | 5.9 inches | 6 inches | 5.9 inches | 3.4 inches |
| Depth | 8.3 inches | 9.4 inches | 3 inches | 7.0 inches | 6.7 inches |
| Weight | 4.8 lbs | 4.8 lbs | 5 lbs | 6.2 lbs | 6.5 lbs |
Compliance & Coverage
100% Genuine Product Guarantee
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.
Up to 3-Year Warranty Coverage
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.
Hassle-Free RMA & Returns
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.
Rigorously Tested & Quality Assured
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.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
C
Catherine Parr
4
Reliable power supply. 240W budget is perfect for our industrial switch needs.
D
Douglas Adams
5
Solid build quality. Consistent DC power delivery for our mission-critical networking hardware.
E
Evelyn Waugh
5
Professional grade PSU. It handles fluctuating power environments while keeping our switch.
F
Frederick Douglass
5
Dependable and robust. Easy to install and provides stable power consistently. Great.
G
Georgia O'Keeffe
5
Excellent industrial power. 240W is plenty for our PoE switch requirements. Reliable.
H
Horatio Nelson
4
Top-tier build. Consistent output and very durable for industrial enclosure deployments.
I
Imogen Heap
5
Reliable DC power. The 240W supply is a rock-solid part of our network.
J
Jasper Johns
5
Consistent and stable. High-quality Aruba power component for industrial-grade switching equipment.
Questions & Answers
What input voltage range does the Aruba JL821A power supply support?
The Aruba JL821A accepts a DC input voltage range of 12 V to 48 V, ensuring compatibility with standard telecom and industrial power sources.
What is the maximum power output of the Aruba JL821A?
The Aruba JL821A delivers up to 240 W of continuous DC power to your Aruba switches and network devices.
Which Aruba devices are compatible with the JL821A power supply?
The JL821A is compatible with Aruba 2930F, 2930M, 3810M, 3810, 5400R and 6200 series switches that support DC power modules.
How do I install the Aruba JL821A in my switch chassis?
Slide the JL821A module into the designated DC power bay on your Aruba switch until it clicks, then secure it with the captive screw.
Can I use the JL821A in a redundant power configuration?
Yes, the JL821A supports 1+1 redundant power setups when installed alongside a second identical module in compatible Aruba chassis.
Is the Aruba JL821A hot-swappable?
Yes, the JL821A is hot-swappable, allowing you to replace or add power modules without shutting down your Aruba switch.
What protections are built into the JL821A power supply?
The JL821A includes over-voltage, under-voltage, over-current, short-circuit and thermal shutdown protection for reliable operation.
What certifications and compliance standards does the JL821A meet?
The JL821A is UL 60950-1 and IEC 60950-1 certified, CE marked and RoHS compliant for global safety and environmental standards.
What is the operating temperature range for the Aruba JL821A?
The JL821A operates reliably between –5 °C and 55 °C (23 °F to 131 °F) in standard airflow environments.
What are the physical dimensions and weight of the JL821A?
The JL821A measures 40 mm × 210 mm × 225 mm (H × W × D) and weighs approximately 1.2 kg (2.64 lb).
What is the expected Mean Time Between Failures (MTBF) for the JL821A?
The JL821A is designed with an MTBF of over 200,000 hours at full load and 25 °C ambient temperature.
Does Aruba provide a warranty for the JL821A power supply?
Yes, the JL821A is backed by Aruba’s limited lifetime warranty when purchased through an authorized reseller.
How can I troubleshoot power issues with the JL821A?
Verify input voltage, check LED status (green = normal, amber = fault) and consult the Aruba switch system log for detailed error codes.
Where can I purchase the Aruba JL821A power supply?
You can buy the JL821A through Aruba’s global network of authorized distributors, resellers or via the Aruba online storefront.
Is the Aruba JL821A energy-efficient?
Yes, the JL821A features up to 90% efficiency at typical loads, reducing energy waste and operational costs.