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819785-B21
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HPE DL20 Gen9 2LFF CTO Server
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
819785-B21
- Description:
- HPE DL20 Gen9 2LFF CTO Server
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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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
- Brand
- Hpe
- 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.
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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 |
| 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 |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
A
Andrew Collins
4
CTO configuration allowed precise hardware selection.
H
Hira Younis
5
Runs quietly and efficiently.
L
Lukas Weber
4
Consistent performance in production.
Z
Zeeshan Ali
5
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.
Which RAID controllers can I install?
You can install HPE Smart Array E208i-a or E208e-p controllers to enable hardware RAID levels 0, 1, 5, and 10.
What network connectivity options are included?
It includes dual integrated 1 GbE ports and offers optional FlexFabric or 10 GbE NICs via two PCIe 3.0 expansion slots.
What are the server’s dimensions and form factor?
The chassis is a 1U rack unit measuring 43.4 mm × 483 mm × 624 mm (H×W×D) and weighs approximately 9.5 kg empty.
What power supply options exist?
Choose between a fixed 240 W non-hot-plug supply or an optional 500 W Flex Slot hot-plug PSU with 80 PLUS Platinum efficiency.
Which operating systems are supported?
This server is certified for Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and VMware ESXi hypervisors.
What remote management features are available?
Integrated HPE iLO 4 provides remote console access, power control, health monitoring, firmware updates, and RESTful API support.
What common use cases suit this server?
Ideal use cases include small-business applications, file/print services, web hosting, virtualization, remote office/branch office, and edge computing.
How do I customize the CTO configuration?
Use HPE’s Build-to-Order portal to select your preferred CPU, memory, storage, networking, and management options before purchase.
What warranty and support plans are offered?
Standard 3-year HPE Foundation Care includes parts, labor, and travel; you can upgrade to HPE Proactive Care or Foundation Care Plus for enhanced response.
How energy-efficient is the DL20 Gen9 CTO?
It uses 80 PLUS Platinum power supplies, low-voltage DDR4 memory, and HPE Power Discovery Services for optimized energy consumption.
Can I install a GPU in this 1U server?
Yes, the chassis supports low-profile GPUs up to 50 W TDP; verify system power and cooling capacities before installation.
What expansion slots are available?
The system includes one PCIe 3.0 x16 low-profile slot and one PCIe 3.0 x8 low-profile slot for additional I/O cards.
How is rack integration handled?
The server ships with tool-less sliding rails and cable management arms for seamless installation in standard 19-inch racks.