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Robust enclosure with dependable cooling.
681840-B21
HP BLc7000 1PH 2PS 4Fan Trl IC Plat Encl
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681840-B21
- Description:
- HP BLc7000 1PH 2PS 4Fan Trl IC Plat Encl
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681840-B21 Overview
681840-B21 is a high-performance rackmount server that supports Intel Xeon Scalable 3rd Gen processors on an LGA 4189 socket, providing 2P CPU scalability. It features ECC DDR4 memory with up to 1 TB capacity installed in 16 slots, 4 PCIe 4.0 expansion slots, 8 x 3.5-inch hot-swap storage bays supporting SATA HDDs with RAID 10 configuration, dual 1GbE network interfaces, and redundant 750W power supplies with active cooling.
681840-B21 is designed for data center, virtualization, file server, and application server use cases, offering robust remote management via iDRAC and compatibility with Windows Server, VMware ESXi, and Ubuntu operating systems. The server is optimized for high availability and reliability in mission-critical environments while providing essential enterprise-grade performance and expansion capabilities.
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Request bulk order quote for 681840-B21 for additional pricing. Browse the full Hpe Bladesystem C7000 series or explore all Hpe products.
681840-B21 Specifications
- Width
- 17.3 inches
- Weight
- 55 lbs
- Height
- 3.44 inches
- Form Factor
- Rackmount
- PCIe Version
- PCIe 4.0
- RAID Support
- RAID 10
- CPU Socket
- LGA 4189
- Product Type
- Server
- Rack Units
- 2U
- Processor Brand
- Intel
- Processor Series
- Intel Xeon Scalable
- Scalability
- 2P
- Max Cores per CPU
- 32
- Max Threads per CPU
- 64
- RAM Type
- ECC DDR4
- RAM Slots
- 16
- Storage Type
- SATA HDD
- Storage Bays
- 8
- Hot-Swap Support
- Yes
- PCIe Slots
- 4
- LAN Ports
- 2
- Remote Management
- iDRAC
- Power Supply
- Redundant
- Cooling
- Active
- Virtualization Ready
- Yes
- Rail Kit Included
- N/A
- Processor Generation
- Xeon 3rd Gen
- Max RAM Capacity
- 1 TB
- Drive Bay Size
- 3.5-inch
- GPU Support
- No
- Network Interface
- 1GbE
- Power Supply Wattage
- 750W
- Use Case
- Virtualization / File Server / Application Server
- Operating System
- Windows Server / VMware ESXi / Ubuntu
- Product Name
- 681840-B21 Enterprise Rackmount Server
- Depth
- 28.5 inches
681840-B21 Use Case
High-Density Data Center Consolidation
In a Fortune 500 enterprise data center migration project, IT architects deploy the 681840-B21-HP BLc7000 1PH 2PS 4Fan Trl IC Plat Encl to house up to 16 half-height blade servers in a single 10U chassis. This configuration delivers 30% higher compute density, reduces rack-space by 40%, and lowers power and cooling costs by 25%, driving significant OPEX savings and streamlined management.
Edge Computing Deployment for Retail Networks
A national retail chain implements the 681840-B21-HP BLc7000 1PH 2PS 4Fan Trl IC Plat Encl at 50 branch locations to run point-of-sale systems, real-time analytics, and digital signage. Its integrated dual power supplies and four dedicated fans ensure 99.99% uptime in non-data-center environments, simplifying remote monitoring while improving transaction speed and customer experience.
High-Performance Computing Test and Simulation Lab
An engineering research lab configures a cluster of GPU and CPU blades inside the 681840-B21-HP BLc7000 1PH 2PS 4Fan Trl IC Plat Encl for fluid dynamics simulations and AI model training. The enclosure’s robust power infrastructure and thermal management support sustained peak loads, accelerating project turnaround by 25% and ensuring consistent, repeatable test results.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 681840-B21 |  681844-B21 |  763850-B21 |  681842-B21 | |
|---|---|---|---|---|
| CPU Socket | LGA 4189 | LGA 4189 | LGA 4189 | LGA 4189 |
| Cooling | Active | Active | Active | Active |
| Depth | 28.5 inches | 28 inches | 28 inches | 28.3 inches |
| Drive Bay Size | 3.5-inch | 3.5-inch | 2.5-inch | 2.5-inch |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount |
| GPU Support | No | Yes | Yes | Yes |
| Height | 3.44 inches | 1.75 inches | 3.5 inches | 1.75 inches |
| Hot-Swap Support | Yes | Yes | Yes | Yes |
| LAN Ports | 2 | 2 | 2 | 2 |
| Max Cores per CPU | 32 | 32 | 32 | 32 |
| Max RAM Capacity | 1 TB | 1 TB | 2 TB | 512 GB |
| Max Threads per CPU | 64 | 64 | 64 | 64 |
| Network Interface | 1GbE | 10GbE | 10GbE | 10GbE |
| Operating System | Windows Server / VMware ESXi / Ubuntu | Ubuntu | VMware ESXi | Windows Server / VMware ESXi / Ubuntu / RHEL / SUSE / CentOS / No OS |
| PCIe Slots | 4 | 4 | 4 | 4 |
| PCIe Version | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 |
| Power Supply | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 750W | 1200W | 1200W | 800W |
| Processor Brand | Intel | Intel | Intel | Intel |
| Processor Generation | Xeon 3rd Gen | Xeon 3rd Gen | Xeon 3rd Gen | Xeon 3rd Gen |
| Processor Series | Intel Xeon Scalable | Intel Xeon Scalable | Intel Xeon Scalable | Intel Xeon Scalable |
| Product Name | 681840-B21 Enterprise Rackmount Server | 681844-B21 Server | 763850-B21 High-Performance Rack Server | 681842-B21 Enterprise Rack Server |
| Product Type | Server | Server | Server | Server |
| RAID Support | RAID 10 | RAID 10 | RAID 10 | RAID 0 / RAID 1 / RAID 10 |
| RAM Slots | 16 | 8 | 16 | 8 |
| RAM Type | ECC DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 |
| Rack Units | 2U | 1U | 2U | 1U |
| Rail Kit Included | N/A | Yes | Yes | No |
| Remote Management | iDRAC | iDRAC | iDRAC | iDRAC |
| Scalability | 2P | 2P | 2P | 2P |
| Storage Bays | 8 | 8 | 8 | 8 |
| Storage Type | SATA HDD | SATA SSD | NVMe SSD | SATA SSD |
| Use Case | Virtualization / File Server / Application Server | Virtualization | Virtualization / File Server / Application Server | Virtualization / File Server / Application Server |
| Virtualization Ready | Yes | Yes | Yes | Yes |
| Weight | 55 lbs | 50 lbs | 50 lbs | 45 lbs |
| Width | 17.3 inches | 19 inches | 17.27 inches | 17.2 inches |
Reviews & Ratings
A
Amina Saleem
4
Handles load efficiently.
J
Jan Nowak
5
Stable for enterprise use.
T
Tariq Mahmood
3
No downtime issues.
J
Julia Carter
4
Very reliable.
Questions & Answers
What is the HP 681840-B21 BladeSystem c7000 enclosure?
The HP 681840-B21 is a 10U HP BladeSystem c7000 enclosure with two 2400W Platinum hot-plug power supplies, four hot-swappable fans, and integrated trailing cables.
Which power supplies come with the HP 681840-B21 enclosure?
The enclosure includes two HP 2400W Platinum-efficiency hot-plug power supplies supporting 200–240 VAC single-phase input.
How many fans are installed in the HP 681840-B21 chassis?
It features four redundant, hot-swappable variable-speed fans to ensure optimal cooling and uninterrupted blade operation.
What power input does the HP 681840-B21 support?
Each 2400W power supply accepts 200–240 VAC single-phase input with N+1 redundancy for continuous availability.