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Fan and baffle kit improved airflow noticeably. Installation was quick and temperatures dropped.
784580-B21
HP ML110 Gen9 PCI Fan and Baffle Kit
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784580-B21
HP ML110 Gen9 PCI Fan and Baffle Kit
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784580-B21 is a high performance air cooling solution built for modern desktops. It features an air cooling design with 2 120mm fans, no radiator required, and socket compatibility for both LGA 1700 and AM4 platforms.
This cooler supports up to 150W TDP while operating at a noise level of 21–30 dBA. It incorporates Fluid Dynamic bearing fans with included thermal paste, ARGB + Software Control lighting, and PWM control—making it an ideal choice for gaming rigs, overclocking systems, and server cooling applications.
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Request bulk order quote for 784580-B21 for additional pricing. Browse the full Hpe Server Cooling Solutions series or explore all Hpe products.
In mid-sized enterprises running dozens of virtual machines on HP ML110 Gen9 servers equipped with multiple PCIe network adapters, the 784580-B21 PCI Fan & Baffle Kit directs targeted airflow across all expansion cards to maintain consistent sub-75 °C operating temperatures under sustained 80% CPU loads. Benefit: prevents thermal throttling, maximizes VM density, extends hardware lifespan, and ensures 24/7 availability.
Edge computing deployments leveraging GPU inference cards on HP ML110 Gen9 often face thermal hotspots during peak AI workloads. The 784580-B21 PCI Fan & Baffle Kit channels chassis airflow directly over GPU modules and adjacent PCIe lanes to stabilize temperatures below critical thresholds. Benefit: delivers up to 20% higher inference throughput, reduces error-rate spikes, and guarantees reliable real-time analytics at remote sites.
Media production and backup servers using high-speed NVMe PCIe storage cards in HP ML110 Gen9 can experience performance dips as drive temperatures climb during bulk transfers. The 784580-B21 Fan & Baffle Assembly ensures consistent airflow over NVMe modules, keeping drive temps within optimal ranges during extended I/O operations. Benefit: shortens backup windows by up to 50%, maintains peak transfer rates, and enhances data integrity under heavy workloads.
To get the detailed certification, please go to the Compliance Center.
 784580-B21 |  765513-B21 |  517520-B21 |  820290-B21 |  874572-B21 | |
|---|---|---|---|---|---|
| Product Type | Cooling Solution | Cooling Solution | Cooling Solution | Cooling Solution | Cooling Solution |
| Cooling Type | Air | Air | Liquid (AIO) | Liquid (AIO) | Liquid (AIO) |
| Compatible Sockets | LGA 1700 / AM4 | LGA 1700 / LGA 1200 / LGA 115x / AM4 / AM5 | LGA 1700 / LGA 1200 / LGA 115x / AM4 / AM5 | LGA 1700 / LGA 1200 / LGA 115x / AM4 | LGA 1700 / AM4 |
| Bearing Type | Fluid Dynamic | Ball | Fluid Dynamic | 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 | 1 | 2 | 2 | 2 |
| Fan Size | 120mm | 140mm | 140mm | 120mm | 120mm |
| Radiator Size | N/A | N/A | 240mm | 240mm | 240mm |
| Max TDP Support | Up to 150W | Up to 150W | Up to 200W+ | 150W | Up to 180W |
| Fan Speed Range | 1500–2000 RPM | 1500–2000 RPM | 1500–2000 RPM | 1500–2000 RPM | 1500–2000 RPM |
| Noise Level | 21–30 dBA | 21–30 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 | Medium | Medium | 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 | Single Color | Addressable RGB | ARGB + Software Control | ARGB + Software Control |
| RGB Sync Compatibility | Corsair iCUE | N/A | ASUS Aura Sync | Corsair iCUE | ASUS Aura Sync |
| Control Method | PWM | PWM | PWM | PWM | PWM |
| Thermal Paste Included | Yes | Yes | Yes | Yes | Yes |
| Mounting Hardware Included | Yes | Yes | Yes | Yes | Yes |
| Product Name | 784580-B21 High Performance Air Cooler | 765513-B21 | 517520-B21 AIO CPU Cooler | 820290-B21 Liquid AIO Cooler | 874572-B21 Liquid AIO CPU Cooler |
| Height | 5 inches | 6.5 inches | 5.3 inches | 5.2 inches | 4.5 inches |
| Width | 4 inches | 4.1 inches | 9.8 inches | 4.1 inches | 9.0 inches |
| Depth | 3 inches | 3.3 inches | 8.2 inches | 3.9 inches | 3.5 inches |
| Weight | 2 lbs | 2.2 lbs | 4.2 lbs | 4.5 lbs | 4.2 lbs |
Fan and baffle kit improved airflow noticeably. Installation was quick and temperatures dropped.
OEM quality part that fits perfectly. Helped stabilize server cooling.
Reliable cooling upgrade for ML110 Gen9. No noise issues.
Straightforward installation and effective airflow management.
Good quality kit that keeps the system running cooler.
The 784580-B21 is an OEM cooling assembly with two high-efficiency fans and a precision-engineered baffle designed to optimize airflow across PCI cards in HP ProLiant ML110 Gen9 servers.
The kit contains two 12V fan modules, one airflow baffle, mounting brackets, screws, and a quick-install guide.
The 784580-B21 kit is fully compatible with HP ProLiant ML110 Gen9 rackmount and tower servers.
Power down and unplug the server, remove the chassis cover, align and secure the baffle over the PCI slots, mount the fans to the baffle, connect to the system board fan headers, then replace the cover.