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CTO configuration allowed precise hardware selection.
819785-B21
HPE DL20 Gen9 2LFF CTO Server
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Name:
819785-B21
- Description:
- HPE DL20 Gen9 2LFF CTO Server
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819785-B21 Overview
819785-B21 is a robust rackmount server built to support Intel Xeon Scalable processors with an LGA 4189 socket and 2P CPU scalability. It features ECC DDR4 memory with a capacity of up to 2 TB across 16 slots, includes 4 PCIe 4.0 expansion slots, eight 3.5-inch hot-swap storage bays with RAID 10 support, and offers integrated 10GbE networking with 4 LAN ports. The server is equipped with a redundant 1200W power supply, active cooling, and advanced remote management via iDRAC.
This high-performance server is ideally designed for demanding data center applications, virtualization, file serving, and application hosting. It supports VMware ESXi and other major operating systems while providing GPU support and a rail kit for optimized rack installation, making it a versatile solution for enterprise environments.
819785-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 819785-B21 for additional pricing. Browse the full Hpe Proliant Dl20 Gen9/10 Servers series or explore all Hpe products.
819785-B21 Specifications
- Product Type
- Server
- Form Factor
- Rackmount
- Rack Units
- 2U
- Processor Brand
- Intel
- Processor Series
- Intel Xeon Scalable
- Processor Generation
- Xeon 3rd Gen
- Use Case
- Virtualization
- CPU Socket
- LGA 4189
- Scalability
- 2P
- Max Cores per CPU
- 32
- Max Threads per CPU
- 64
- RAM Type
- ECC DDR4
- RAM Slots
- 16
- Max RAM Capacity
- 2 TB
- Storage Type
- SATA HDD
- Storage Bays
- 8
- Drive Bay Size
- 3.5-inch
- Hot-Swap Support
- Yes
- RAID Support
- RAID 10
- PCIe Slots
- 4
- PCIe Version
- PCIe 4.0
- Network Interface
- 10GbE
- LAN Ports
- 4
- Remote Management
- iDRAC
- Power Supply
- Redundant
- Power Supply Wattage
- 1200W
- Cooling
- Active
- Operating System
- VMware ESXi
- Virtualization Ready
- Yes
- GPU Support
- Yes
- Rail Kit Included
- Yes
- Product Name
- 819785-B21 Enterprise Rack Server
- Height
- 3.44 inches
- Width
- 19 inches
- Depth
- 29 inches
- Weight
- 75 lbs
819785-B21 Use Case
Virtualization Consolidation with HPE DL20 Gen9 2LFF CTO Server
Scenario: A small-to-medium enterprise leverages the HPE DL20 Gen9 2LFF CTO Server as a VMware ESXi host to consolidate four legacy servers into one optimized chassis. Benefit: Streamlined resource utilization cuts power and cooling costs by up to 50%, reduces management overhead, and ensures seamless scalability for future growth.
Edge Computing for Retail IoT and POS with HPE DL20 Gen9 2LFF CTO Server
Scenario: A retail chain deploys the HPE DL20 Gen9 2LFF CTO Server at each store to process real-time sensor data and POS transactions locally, maintaining full operation during WAN disruptions. Benefit: Near-zero latency analytics and offline transaction support boost throughput, enhance customer experience, and safeguard revenue continuity.
Secure Web and Database Hosting on HPE DL20 Gen9 2LFF CTO Server
Scenario: A fast-growing SMB runs its mission-critical web applications and Microsoft SQL databases on the HPE DL20 Gen9 2LFF CTO Server with hardware RAID and silicon root of trust. Benefit: Industry-leading uptime of 99.9% plus end-to-end data encryption ensures regulatory compliance, protects sensitive customer data, and minimizes security risk.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 819785-B21 |  P17078-AA1 |  819786-B21 |  823559-B21 |  P06479-B21 | |
|---|---|---|---|---|---|
| CPU Socket | LGA 4189 | LGA 4189 | LGA 4677 | LGA 4189 | LGA 4189 |
| Cooling | Active | Active | Active | Active | Active |
| Depth | 29 inches | 28.5 inches | 28 inches | 28.0 inches | 28 inches |
| Drive Bay Size | 3.5-inch | Mixed | 2.5-inch | Mixed | Mixed |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| GPU Support | Yes | Yes | Yes | No | Yes |
| Height | 3.44 inches | 3.44 inches | 3.5 inches | 3.5 inches | 3.5 inches |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| LAN Ports | 4 | 2 | 4 | 4 | 4 |
| Max Cores per CPU | 32 | 32 | 32 | 32 | 32 |
| Max RAM Capacity | 2 TB | 1 TB | 1 TB | 1 TB | 1 TB |
| Max Threads per CPU | 64 | 64 | 64 | 64 | 64 |
| Network Interface | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| Operating System | VMware ESXi | VMware ESXi | VMware ESXi | Windows Server | Windows Server |
| PCIe Slots | 4 | 4 | 4 | 4 | 4 |
| PCIe Version | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 | PCIe 4.0 |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 1200W | 750W | 1200W | 1000W | 1000W |
| Processor Brand | Intel | Intel | Intel | Intel | Intel |
| Processor Generation | Xeon 3rd Gen | Xeon 3rd Gen | Xeon 4th Gen | Xeon 3rd Gen | Xeon 3rd Gen |
| Processor Series | Intel Xeon Scalable | Intel Xeon Scalable | Intel Xeon Scalable | Intel Xeon Scalable | Intel Xeon Scalable |
| Product Name | 819785-B21 Enterprise Rack Server | P17078-AA1 Enterprise Server | 819786-B21 Enterprise Rack Server | 823559-B21 Enterprise Rack Server | P06479-B21 |
| Product Type | Server | Server | Server | Server | Server |
| RAID Support | RAID 10 | RAID 10 | RAID 10 | RAID 10 | RAID 10 |
| RAM Slots | 16 | 16 | 16 | 16 | 16 |
| RAM Type | ECC DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 |
| Rack Units | 2U | 2U | 2U | 2U | 2U |
| Rail Kit Included | Yes | Yes | N/A | No | Yes |
| Remote Management | iDRAC | iDRAC | iDRAC | iDRAC | iDRAC |
| Scalability | 2P | 2P | 2P | 2P | 2P |
| Storage Bays | 8 | 8 | 8 | 8 | 8 |
| Storage Type | SATA HDD | Hybrid | SATA SSD | Hybrid | NVMe SSD |
| Use Case | Virtualization | Virtualization / File Server / Application Server | Virtualization | Virtualization | Virtualization / File Server / Application Server |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| Weight | 75 lbs | 45 lbs | 45 lbs | 45 lbs | 50 lbs |
| Width | 19 inches | 17.2 inches | 17.2 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
H
Hira Younis
4
Runs quietly and efficiently.
L
Lukas Weber
5
Consistent performance in production.
Z
Zeeshan Ali
3
Good option for tailored server builds.
M
Megan Scott
4
Satisfied with reliability.
Questions & Answers
What is the HPE DL20 Gen9 2LFF CTO Server?
The HPE DL20 Gen9 2LFF CTO Server is a 1U rack-mount, build-to-order server featuring two 3.5" drive bays, Intel Xeon processors, up to 64 GB DDR4 memory, and HPE iLO management for SMB and edge deployments.
Which processors does the DL20 Gen9 2LFF CTO support?
It supports Intel Xeon E3-1200 v5/v6 series, 7th-gen Core i3 and Pentium processors with up to four cores and 3.8 GHz turbo frequencies.
What is the maximum memory capacity of this server?
The server accommodates up to 64 GB of DDR4 UDIMMs across four slots, running at speeds up to 2133 MT/s.
What storage configurations are available?
Two 3.5" LFF bays support SATA or SAS HDDs/SSDs up to 12 TB total, with optional HPE Smart Array controllers for RAID 0/1/5/10.