HPE ProLiant DL20 Gen9 Server

Compact, versatile, efficient

Is the HPE ProLiant DL20 Gen9 Server right for my business?


•  Small and midsize businesses—Reduce costs and increase simplicity with preloaded ClearOS so you can spend more time working on your business

than on IT.


•  Enterprises—Tap into performance, data protection, and ease of use that is suitable for small-to-medium workloads in an “install anywhere” compact server at a competitive price point.


•  Tier 2 and 3 service providers—Scale out quickly and affordably to respond to changing business needs. The rack now provides cheaper drive options for environments requiring an affordable solution that can be easily ripped and replaced.

Finally—a server that’s simple, open, and affordable


When you get a new smartphone or laptop, you expect to be able to start using it right out of the box. Why should your server be any different? HPE is redefining the end-to-end server experience for small and midsize businesses. The HPE ProLiant DL20 Gen9 Server can now come as a ready-to-use appliance—with the HPE qualified ClearOS preloaded at no additional cost—so you can simply plug in your server and have it work right away.


What makes this possible is the simple and easy-to-use ClearOS. Built on Linux®, the reliable and secure ClearOS software lets you manage your server via an intuitive browser-based interface. You also get immediate access to an application marketplace with over 100 (and growing) curated applications that are perfect for small and midsize businesses and service providers. You can install these applications as needed—and because ClearOS applications are also open source—you pay only if you want support, allowing you to plow the savings back into your business.


Data protection, ease of use, reliability, and performance


The ProLiant DL20 Gen9 Server offers data protection features, including optional redundant power supplies, DDR4 memory, enhanced error handling, HPE Smart Array RAID mirroring and striping capabilities, with Flash Backed Write Cache (FBWC) up to 4 GB. FBWC protects data by capturing and holding it indefinitely in the event of a power loss, equipment failure, human error, or virus attacks.


The server also features extreme ease of use, starting with a short-depth chassis for easy deployment and mobility. Embedded HPE Integrated Lights-Out 4 (iLO 4) management provides user-friendly tools for deploying, managing, and troubleshooting servers—ideal for those with limited IT resources. A wide choice of Intel® Pentium®, i3, and Intel® Xeon® E3-1200 v5/v6 processors with up to 64 GB of DDR4 memory helps you handle a variety of workload demands. And the latest ProLiant DL20 Gen9 Servers consume up to 29% less power1  which, combined

with the efficient redundant power supply option,2  provides you with an ENERGY STAR® certified power saving solution.

1 Compared to the previous generation.

2 RPS option available only on SFF chassis

Technical specifications


In the following table, bold text in the right-hand column denotes new features as compared to the HPE ProLiant DL320e Gen8 v2 Server.


Choice of: one Intel Xeon E3-1200 v5/v6 series, 4-core; one Intel Pentium, 2-core; or one Intel® Core™ i3, 2-core PCIe 3.0, up to 2 PCIe 3.0 slots

ClearOS pre-installed at no extra cost (optional)  or various choices of OS (visit the Operating System Support Matrices for details)


Operating system


Four DDR4, up to 2400 MHz (64 GB max)


HPE Dynamic Smart Array B140i, HPE Smart Array Controller P440 with FBWC, and HPE Smart Host Bus Adapters (HBAs)

HPE SmartDrives

Two LFF non-hot plug and hot plug (SAS/SATA); four SFF hot plug (SAS/SATA)


Two 1GbE embedded Ethernet adapters and FlexibleLOM to upgrade to 10 Gb

VGA/serial/USB ports/SD

Two rear USB 3.0, two front USB 2.0, one internal USB 3.0

GPU support

One single-width, half-length GPU (optional)

On-premises management

HPE OneView with HPE iLO Advanced

On-cloud management

HPE Insight Online with enhanced mobile application

On-system management

HPE iLO 4, Intelligent Provisioning, Smart Update Manager (SUM), RESTful Interface Tool

Standard 290W (80 PLUS Silver certified) power supply; HPE 900W AC 240VDC Redundant Power Supply Kit

(80 PLUS Gold certified)—optional, for SFF chassis only


Power and cooling

ASHRAE A3, ENERGY STAR (only on RPS configuration models)

Industry compliance

Rack (1U) 15.05 in. (ear-to-ear)

Form factor/chassis depth

warranty (parts/labor/on-site)


System ROM

UEFI and Legacy BIOS

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