Precision 3431 Desktop Workstation

Get to know Windows 10 Pro

Breakthrough power. Small design.

Extreme performance is more accessible than ever with this tower workstation featuring increased reliability and enhanced memory.

Precision 3431 Fixed Workstation


Operating System

With Windows 10 or Ubuntu 18.04 LTS – for a smooth, versatile PC experience.
Unmatched performance and affordability

Unmatched performance and affordability

Get ultimate power without sacrificing your budget on the affordable Dell Precision 3000 Series workstations. Elevate your ideas with professional performance, compact industrial designs and Dell’s Reliable Memory Technology Pro.
Professional performance

Professional performance

Blaze past limits: Power through the most intensive tasks with the latest 9th gen Intel® Core™ and Xeon® processors and up to 64GB 2666MHz memory speeds. The new motherboard features increased memory trace lengths that meet the latest Intel® guidelines.

Next gen graphics: Run professional applications at the fastest speeds possible with next generation AMD Radeon™ Pro and NVIDIA® Quadro® professional graphics with up to 55W of graphics support.

Expandable and flexible: Scalable storage featuring SATA and PCIe NVMe SSD options up to 6TB delivers top performance for complex projects. Plus, Intel® Optane™ Memory massively boosts your system’s responsiveness while keeping high capacity storage costs to a minimum.

Improve productivity with the Dell Precision Optimizer

Tuned performance: Free with your Precision workstation, the Dell Precision Optimizer delivers faster application optimization with a single click. It also automatically tunes your workstation to run popular ISV applications at the fastest speeds possible, has automated system updates and provides analytics to address resource bottlenecks.

Premium customized performance: Upgrade to the new Dell Precision Optimizer Premium version, the world’s first AI-based performance optimizer software for workstations.* This program learns the behavior of any user-specified applications, identifies optimization opportunities using machine learning and applies performance improvements.
Reliability when you need it most

Reliability when you need it most

Work without fail: Dell Reliable Memory Technology Pro (RMT) protects your work from potential crashes related to memory errors. Working in conjunction with ECC memory it detects and corrects or maps out memory errors in real time. RMT Pro also monitors the health of the memory and alerts the user when the memory is at a critical level and needs to be replaced.

Independent Software Vendor (ISV) certification: Precision workstations are tested to ensure the high-performance applications you rely on every day run smoothly. Dell ISV-certifications cover the most popular independent software applications.

Learn more
Make room for your ideas

Make room for your ideas

Small space? No problem: Your Precision 3431 Small Form Factor features an industrial small form factor design that is ideal for space-constrained workspaces that need workstation-class performance and reliability.

Premium and accessible design: Handle demanding tasks with ease thanks to a range of features designed for an efficient workflow. Premium materials and the optional external dust filter keep internal components pristine, while Wi-Fi capabilities and a range of accessible ports keep you connected to everything you need.

Manage and secure with ease

Ultimate convenience

Ultimate convenience

Manage all of your Windows 10 endpoints from one console with Dell Client Command Suite and VMware® Workspace ONE™ integration.
Comprehensive threat prevention

Comprehensive threat prevention

With SafeGuard and Response, you have the tools and security experts to protect your ecosystem from cyber threats, giving you the freedom and peace of mind to focus on other strategic initiatives.
Remotely manage

Remotely manage

Dell unique vPro extensions can remotely manage and run diagnostics on a fleet of devices, whether they are powered on or off.
Ports & Slots

Ports & Slots

1. Power Button | 2. Optical Drive (optional) | 3. Internal SD Card reader (Optional) | 4. Universal Audio Jack | 5. USB 2.0 (2), Type A | 6. USB 3.1, Type A [5Gb] | 7. USB 3.1, Type C [10Gb] | 8. Audio Line Out | 9. PS2 Keyboard/Mouse | 10. Serial | 11. Display Port (2) | 12. USB 3.1, Type A [5Gb] (4) | 13. USB 2.0, Type A [w/ SmartPower] (2) | 14. RJ45 Network Connector | 15. Power plug
Dimensions & Weight

Dimensions & Weight

1. Height: 290mm (11.42") | 2. Width: 92.6mm (3.65") | 3. Depth: 292mm (11.49") | Weight: 5.117kg (11.28lb)*


  • Intel® Pentium® Gold G5420 (2 Core, 4MB Cache, 3.8 Ghz w/UHD Graphics 630)   
    Intel® Core™ i3-9100 (4 Core 6MB Cache, 3.6Ghz, 4.2 Ghz Turbo w/UHD Graphics 630)   
    Intel® Core™ i5-9500 (6 Core, 9MB Cache, 3.0Ghz, 4.4 Ghz Turbo w/UHD Graphics 630)   
    Intel® Core™i5-9600 (6 Core, 9MB Cache, 3.1Ghz, 4.6 Ghz Turbo w/UHD Graphics 630)   
    Intel® Core™ i7-8700  (6 Core, 12MB Cache, 3.20GHz, 4.6Ghz Turbo  w/ HD Graphics 630)   
    Intel® Core™ i7-9700 (8 Core, 12MB Cache, 3.0Ghz, 4.8 Ghz Turbo w/UHD Graphics 630)   
    Intel® Core™ i9-9900 (8 Core, 16MB Cache, 3.1Ghz, 4.9 Ghz Turbo w/UHD Graphics 630)   
    Intel® Xeon® E-2224 (4 Core, 8MB Cache, 3.4Ghz, 4.6Ghz Turbo)   
    Intel® Xeon® E Processor E-2174G (4 Core HT, 8MB Cache, 3.8Ghz, 4.7GHz Turbo)   
    Intel® Xeon® E-2236 (6 Core, 8MB Cache, 3.4Ghz, 4.8Ghz Turbo)   
    Intel® Xeon® E-2246G (6 Core, 8MB Cache, 3.6Ghz, 4.8Ghz Turbo w/UHD Graphics 630)   
    Intel® Xeon® E-2224G (4 Core, 8MB Cache, 3.5Ghz, 4.7Ghz Turbo w/UHD Graphics 630)

Operating System (Dell recommends Windows 10 Pro for business.)

  • Windows 10 Pro (64 bit)
    Windows 10 Pro for Workstations (64 bit)
    Windows 10 Home (64 bit)
    Red Hat® Enterprise Linux® 7.5 (coming soon)
    Red Hat 8.0 (coming soon)
    Ubuntu Linux 16.04
    Ubuntu Linux 18.04

Video Card

  • Intel® UHD Graphics 630
    AMD Radeon™ Pro WX4100
    AMD Radeon™ Pro WX3100
    AMD Radeon™ Pro WX2100
    NVIDIA® Quadro® P1000
    NVIDIA® Quadro® P620
    NVIDIA® Quadro® P400


  • 4 GB, 1X4 GB, DDR4, 2666 MHz, Non-ECC SDRAM
    8 GB, 2x4 GB, DDR4, 2666 MHz, Non-ECCSDRAM
    8 GB, 1x8 GB, DDR4, 2666 MHz, ECC/Non-ECCSDRAM
    16 GB, 4x4 GB, DDR4, 2666 MHz, Non-ECCSDRAM
    16 GB, 2x8 GB, DDR4, 2666 MHz, ECC/Non-ECCSDRAM
    32 GB, 4x8 GB, DDR4, 2666 MHz, ECC/Non-ECCSDRAM
    32 GB, 2x16 GB, DDR4, 2666 MHz, ECC/Non-ECCSDRAM
    64 GB, 4x16 GB, DDR4, 2666 MHz, ECC/Non-ECCSDRAM

Hard Drive

  • 2.5", 500 GB/1 TB, 7200, SATA, HDD
    2.5", 500 GB, 7200, SATA, HDD, FIPS Self Encrypting Opal 2.0
    2.5", 2 TB, 5400, SATA, HDD
    2.5", 256 GB/512 GB/1 TB, SATA20, SSD, SED
    2.5", 512 GB/1 TB, SATA, SSD, SED
    3.5", 500 GB/1 TB/2 TB/4 TB/8TB, 7200, SATA, HDD
    3.5", 4 TB, 5400, SATA, HDD
    M.2 2280, 256 GB/512 GB/1 TB/2 TB, PCIe, 40, SSD
    M.2 2280, 512 GB/1 TB, PCIe, 50, SSD
    M.2 2280, 512 GB, PCIe, 40, SSD, SED (Opal 2.0)
    M.2 2230, 32 GB, PCIe, SSD, Optane

Security Software

  • Security Options

    Trusted Platform Module TPM 2.0,
    Dell Data Guardian,
    Dell Endpoint Security Suite Enterprise,
    Dell HW Crypto Accelerator,
    Microsoft® Windows Bitlocker,
    Local HDD data wipe via BIOS (“Secure Erase”),
    Encryption - SED HDD (Opal FIPS),
    Chassis lock slot support,
    Chassis Intrusion Switch,
    D-Pedigree (Secure Supply Chain Functionality),
    Setup/BIOS Password,
    Optional Smart Card keyboards,
    Optional Smart Card Reader,
    Intel® Trusted Execution Technology,
    Intel® Identity Protection Technology,
    Dell Secure Works,
    BIOS support optional Computrace,
    Intel® Software Guard extensions


  • 3 Years Hardware Service with Onsite/In-Home Service After Remote Diagnosis (Basic) up to 5 Year ProSupport Plus with 4-Hour 7X24 Onsite Service After Remote Diagnosis

Accidental Damage Protection

  • Up to 5 Years Accidental Damage Service


  • 4 USB 2.0 Type A (2 Front / 2 Rear)
    5 USB 3.1 Type A (5Gb) (1 Front / 4 Rear)
    1 Front USB 3.1 Type C™ (10Gb), data only
    1 Front Universal Audio Jack
    1 Front Internal SD Card reader (Optional)
    2 Rear PS2
    2 Rear Display Port
    1 Rear Optional Port (VGA, HMDI 2.0, DP++ 1.2, Type C™ w/DP-Alt mode)
    1 Rear RJ45 Network Connector
    1 Rear Serial
    1 Rear Audio Line out

Optical Drive

  • No Optical Drive
    8x DVD-ROM 9.5mm Optical Disk Drive
    8x DVD+/-RW 9.5mm Optical Disk Drive
    Integrated Smart Card Reader with Contact and Contactless Support (CAC/PIV)
    6x Slimline Blu-Ray Writer


  • 1 Security Cable Slot
    1 Internal SD Card reader (Optional)

Dimensions & Weight

  • Height: 290 mm (11.42") x Width: 92.6 mm (3.65") x Depth: 292 mm (11.49") x Weight: 5.117 kg (11.28 lb)*


  • Integrated: Intel Ethernet Connection I219-LM 10/100/1000
    Optional: Intel® 10/100/1000 PCIe Gigabit Networking card
    Aquantia® AQtion™ AQN-108 5/2.5 GbE NIC Adapter
    Optional: Wireless / Bluetooth w / vPro™ support


  • 260W 92% efficient PSU (80PLUS Platinum Certified) Energy Star Compliant
    200W 85% efficient PSU (80PLUS Gold Certified) Energy Star Compliant
    200W 85% efficient PSU (80PLUS Bronze Certified) Energy Star Compliant