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Single fan option improved enclosure cooling consistency.
412140-B21
HP BLc Encl Single Fan Option
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412140-B21
HP BLc Encl Single Fan Option
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412140-B21 is a liquid cooling solution engineered for high-performance systems, featuring 2 140mm PWM-controlled fans mounted on a 280mm radiator. It supports both Intel and AMD sockets, handles up to 150W TDP, and is optimized for gaming rigs, overclocking setups, and server cooling while maintaining a noise level of 31–40 dBA.
This cooler incorporates fluid dynamic bearings and includes premium thermal paste for effective heat transfer. It also offers ARGB lighting with Corsair iCUE sync compatibility and is controlled via PWM, ensuring precise fan speed adjustments for enhanced performance and aesthetics.
412140-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 412140-B21 for additional pricing. Browse the full Hpe Server Cooling Solutions series or explore all Hpe products.
In enterprise virtual desktop infrastructure (VDI) deployments hosting 20+ desktops per HP BladeSystem enclosure, the 412140-B21 single fan option boosts targeted airflow, prevents thermal throttling under peak load, and maintains consistent user experience. Benefit: Upholds desktop performance SLAs, reduces heat-related downtimes, and lowers IT support costs.
Scientific research labs running high-performance computing (HPC) workloads in blade enclosures deploy the 412140-B21 single fan option to deliver precise cooling to critical compute nodes. Outcome: Stabilized CPU and GPU temperatures under sustained loads, minimized hardware failures, and maximized computation throughput.
Financial trading firms requiring continuous, low-latency transactions integrate the 412140-B21 single fan option into their HP BladeSystem enclosures to add redundant cooling capacity during market peaks. Benefit: Ensures uninterrupted operation, protects against overheating, extends server lifespan, and supports regulatory compliance.
To get the detailed certification, please go to the Compliance Center.
 412140-B21 |  871246-B21 |  517520-B21 |  BW930A |  794947-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 1700 / LGA 1200 / LGA 115x / AM4 / AM5 | LGA 1700 / LGA 1200 / LGA 115x / AM4 / AM5 | LGA 1700 / LGA 1200 / AM4 / AM5 |
| Bearing Type | Fluid Dynamic | Sleeve | Fluid Dynamic | Fluid Dynamic | Dual Ball |
| 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 | 140mm | 120mm | 140mm | 120mm | 120mm |
| Radiator Size | 280mm | N/A | 240mm | 240mm | 240mm |
| Max TDP Support | Up to 150W | Up to 180W | Up to 200W+ | Up to 150W | 200W+ |
| Fan Speed Range | 2000–2500 RPM | 1500–2000 RPM | 1500–2000 RPM | 1500–2000 RPM | 1500–2000 RPM |
| Noise Level | 31–40 dBA | Up to 20 dBA | 21–30 dBA | 21–30 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 | High |
| 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 | Addressable RGB | Addressable RGB | ARGB + Software Control |
| RGB Sync Compatibility | Corsair iCUE | ASUS Aura Sync | ASUS Aura Sync | ASUS Aura Sync | ASUS Aura Sync |
| Control Method | PWM | PWM | PWM | PWM / Software | PWM |
| Thermal Paste Included | Yes | Yes | Yes | Yes | Yes |
| Mounting Hardware Included | Yes | Yes | Yes | Yes | Yes |
| Product Name | 412140-B21 High Performance AIO Liquid Cooler | 871246-B21 High Performance Air Cooler | 517520-B21 AIO CPU Cooler | BW930A All-in-One Liquid Cooler | 794947-B21 High-Performance Liquid AIO Cooler |
| Height | 4.5 inches | 5 inches | 5.3 inches | 5.5 inches | 1.5 inches |
| Width | 9.0 inches | 8 inches | 9.8 inches | 9.0 inches | 9.0 inches |
| Depth | 9.0 inches | 7 inches | 8.2 inches | 9.0 inches | 4.0 inches |
| Weight | 3.5 lbs | 4 lbs | 4.2 lbs | 4.5 lbs | 4.5 lbs |
Single fan option improved enclosure cooling consistency.
OEM fan matched existing hardware perfectly.
Quiet and efficient operation.
Good airflow upgrade.
Reliable spare component.
The HP BLc Encl Single Fan Option (SKU: 412140-B21) is a hot-swappable, high-efficiency cooling module designed to maintain optimal thermal performance in HP BladeSystem c-Class enclosures.
The 412140-B21 single fan option is compatible with HP BladeSystem c7000 and c3000 enclosures running chassis firmware v2.3 or later.
To install, power down the enclosure, slide the fan module into an empty fan bay until it clicks, then power on and verify status via the Onboard Administrator LED.
Yes, you can install the 412140-B21 single fan option alongside redundant fan modules, but HP recommends balanced cooling configurations for optimal airflow.