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Redundant fan cage improved cooling reliability immediately.
874572-B21
HPE ML350 Gen10 Redundant Fan Cage Kit
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$235.00
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874572-B21
HPE ML350 Gen10 Redundant Fan Cage Kit
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874572-B21 is a Liquid (AIO) cooling solution featuring 2 fans sized at 120mm each, a 240mm radiator, and compatibility with Intel (LGA 1700) and AMD (AM4) sockets. It supports up to 180W TDP, operates at a noise level of 21–30 dBA, uses Fluid Dynamic bearings, includes pre-applied thermal paste, and boasts ARGB + Software Control RGB lighting.
This product is designed for gaming rigs, overclocking setups, and server cooling applications. Its fans are controlled via a 4-Pin (PWM) connector, ensuring efficient temperature management while providing high static pressure and airflow performance for demanding computing environments.
874572-B21 price is $153.00, a 34.9% saving from the Hpe list price of $235.00. 874572-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 874572-B21 for additional pricing. Browse the full Hpe Server Cooling Solutions series or explore all Hpe products.
In a multi-rack data center powering critical business applications, the 874572-B21 Redundant Fan Cage Kit delivers N+1 cooling redundancy for HPE ML350 Gen10 servers. By automatically engaging backup fans on primary fan failure, it maintains optimal airflow and prevents thermal shutdowns—ensuring continuous uptime, reducing unplanned outages, and safeguarding service-level agreements.
For distributed enterprises managing remote office IT closets without on-site technicians, the 874572-B21 kit provides hot-swappable fan modules for HPE ML350 Gen10 platforms. This plug-and-play solution minimizes maintenance visits and automates failover cooling, delivering consistent server performance, lower operating costs, and improved network availability in unattended environments.
In compute-intensive research or virtualization clusters, the 874572-B21 Redundant Fan Cage Kit enhances thermal management for HPE ML350 Gen10 blades under peak load. By ensuring uninterrupted airflow and preventing thermal throttling, it maximizes CPU performance, extends component lifespan, and supports sustained high-density workloads with reliable, energy-efficient cooling.
To get the detailed certification, please go to the Compliance Center.
 874572-B21 |  871246-B21 |  867810-B21 |  765654-B21 |  820290-B21 | |
|---|---|---|---|---|---|
| Product Type | Cooling Solution | Cooling Solution | Cooling Solution | Cooling Solution | Cooling Solution |
| Cooling Type | Liquid (AIO) | Air | Liquid (AIO) | Liquid (AIO) | Liquid (AIO) |
| Compatible Sockets | LGA 1700 / AM4 | LGA 1200 / AM4 | LGA 1200 / LGA 115x / AM4 / AM5 | LGA 115x / AM4 | LGA 1700 / LGA 1200 / LGA 115x / AM4 |
| Bearing Type | Fluid Dynamic | Sleeve | Ball | Fluid Dynamic | Fluid Dynamic |
| Use Case | Gaming / Overclocking / Server Cooling | Gaming / Overclocking / Server Cooling | Gaming / Overclocking / Server Cooling | Gaming / Overclocking / Server Cooling | Gaming / Overclocking / Server Cooling |
| Fan Count | 2 | 2 | 2 | 2 | 2 |
| Fan Size | 120mm | 120mm | 120mm | 120mm | 120mm |
| Radiator Size | 240mm | N/A | 240mm | 240mm | 240mm |
| Max TDP Support | Up to 180W | Up to 180W | Up to 150W | Up to 150W | 150W |
| Fan Speed Range | 1500–2000 RPM | 1500–2000 RPM | 2000–2500 RPM | 1500–2000 RPM | 1500–2000 RPM |
| Noise Level | 21–30 dBA | Up to 20 dBA | Up to 20 dBA | Up to 20 dBA | 21–30 dBA |
| Airflow (CFM) | 41–60 CFM | 41–60 CFM | 41–60 CFM | 41–60 CFM | 41–60 CFM |
| Static Pressure | High | High | High | Medium | Medium |
| Connector Type | 4-Pin (PWM) | 4-Pin (PWM) | 4-Pin (PWM) | 4-Pin (PWM) | 4-Pin (PWM) |
| RGB Lighting | ARGB + Software Control | ARGB + Software Control | ARGB + Software Control | Addressable RGB | ARGB + Software Control |
| RGB Sync Compatibility | ASUS Aura Sync | ASUS Aura Sync | Corsair iCUE | ASUS Aura Sync | Corsair iCUE |
| Control Method | PWM | PWM | PWM | Software | PWM |
| Thermal Paste Included | Yes | Yes | Yes | Yes | Yes |
| Mounting Hardware Included | Yes | Yes | Yes | Yes | Yes |
| Product Name | 874572-B21 Liquid AIO CPU Cooler | 871246-B21 High Performance Air Cooler | 867810-B21 Liquid Cooling System | 765654-B21 Liquid Cooling AIO | 820290-B21 Liquid AIO Cooler |
| Height | 4.5 inches | 5 inches | 1.75 inches | 5.2 inches | 5.2 inches |
| Width | 9.0 inches | 8 inches | 9.25 inches | 3.1 inches | 4.1 inches |
| Depth | 3.5 inches | 7 inches | 8.75 inches | 10.2 inches | 3.9 inches |
| Weight | 4.2 lbs | 4 lbs | 4.5 lbs | 4.3 lbs | 4.5 lbs |
Redundant fan cage improved cooling reliability immediately.
OEM fit and quiet operation.
Easy installation with noticeable airflow improvement.
Stable temperatures under continuous load.
Very dependable cooling upgrade.
The HPE ML350 Gen10 Redundant Fan Cage Kit (SKU: 874572-B21) is an expansion module for HPE ProLiant ML350 Gen10 servers that provides dual-fan redundancy for continuous cooling and system reliability.
Redundant cooling ensures continuous airflow by supplying secondary fan capacity if one fan fails, preventing thermal shutdown and maximizing server uptime and performance.
Power down the ML350 Gen10 server, remove the existing fan assembly, slide the 874572-B21 module into the fan bay, and secure it with the captive screws before powering up.
No. To install or replace the redundant fan cage module, the server must be powered off to ensure safe installation and system integrity.