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  • AsRock Rack 4U18N-B550/2T, 4U chassis 18 nodes support 36 x 2.5'' NVMe SSD, 1600W Redundant (3+1) PSU Supports AMD Ryzen 5000, 4000G, 3000G, 3000 series Processors 4 DDR4 ECC/ non-ECC UDIMM, up to 32GB - 4U18N-B550/2T

    SKU # HS-ASR-4U18N-B550/2T
    Condition # New

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    UPC:
    4.71E+12
    Availability:
    4-6+ Weeks ETA - Vendor Estimate
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    Product Details

    1. 4U chassis with 18 nodes support 36 x 2.5'' NVMe SSD, 1600W Redundant (3+1) PSU
    2. Supports AMD Ryzen™ 5000, 4000G, 3000G, 3000 series Processors
    3. 4 DDR4 ECC/ non-ECC UDIMM, up to 32GB each
    4. Supports 2 x 2.5" NVMe SSD per node
    5. Supports 2 M.2 per node
    6. Integrated IPMI 2.0 and KVM with Dedicated LAN
    7. 2x RJ45 (10GbE) by Intel® X710-AT2
     System
    Form Factor 4U Rackmount
    Chassis Model 4U18N
    Dimensions 950 x 438 x 176 mm
    Support MB B550D4ID-2T/18N
     Front Panel
    Buttons UID, Power, RESET
    LEDs System Fail, LAN1/LAN2, UID, Power
    I/O Ports 2 RJ45(10GbE) by Intel® X710-AT2
    2 Type-A (USB 3.2 Gen1)
    1 DB15
    IPMI LAN 1 dedicated IPMI
     External Drive Bay / Storage
    Internal Side 2 Fixed 2.5" NVMe (PCIe4.0 x4) /SATA drive bays (BTO)
    1 M-key (PCIe4.0 x4 or SATA 6Gb/s), supports 22110/2280 form factor [CPU]
    1 M-key (PCIe3.0 x2 or SATA 6Gb/s), supports 2280 form factor [FCH]
     Power Supply
    Type 4 (3+1) RPSU
    Output Watts 1600W
    Efficiency Platinum
    AC Input 100-240V, 50/60Hz
     System Fan
    Middle 80x80mm x5
    Fail LED Abnormal(DC on): LED ON (Solid Red)
    Normal: LED OFF
     Processor System
    CPU Supports:
    AMD Ryzen™ 5000 and 3000 Series Desktop Processors
    AMD Ryzen™ 4000 and 3000 G-Series Desktop Processors with Radeon™ Graphics
    AMD Ryzen™ PRO 5000, 4000 and 3000 Series Desktop Processors
    Socket AM4 PGA 1331*
    *Please note that this motherboard only supports LGA115x CPU heatsink.
    Chipset B550
     System Memory
    Supported DIMM Quantity 4 DIMM slots (2DPC)
    Supported Type Supports DDR4 288-pin ECC*/non-ECC UDIMM
    *For AMD Ryzen Desktop Processors with Radeon Graphics, ECC support is only with Processors with PRO technologies.
    Max. Capacity per DIMM up to 32GB
    Max. DIMM Frequency up to 3200 MHz*
    * AMD Ryzen™ 3000 G-Series Desktop Processors with Radeon™ Graphics support up to 2666 MHz
    Voltage 1.2V
     TPM
    TPM support By optional accessory
     Server Management
    BMC Controller ASPEED AST2500
    IPMI Dedicated GLAN 1 x Realtek RTL8211E for dedicated management GLAN
     Graphics
    Controller ASPEED AST2500:
    VRAM DDR4 16MB
    Output 1 DB15 (VGA)
     System BIOS
    BIOS Type 32MB AMI UEFI Legal BIOS
    BIOS Features Plug and Play (PnP), ACPI 2.0 Compliance Wake Up Events, SMBIOS 2.8.0 Support, ASRock Rack Instant Flash
     Hardware Monitor
    Temperature CPU Temperature Sensing
    System Temperature Sensing
    Fan Middle Fan Tachometer
    Middle Fan Multi-Speed Control
    Voltage Vcpu, +1.8V, +3V,+5V, +12V, BAT, +1.8VSB, +3VSB, +5VSB
     Environment
    Temperature Operation temperature: 10°C ~ 35°C / Non operation temperature: -40°C ~ 70°C
    Humidity - Non operation humidity: 20% ~ 90% ( Non condensing)

    Shipping & Return

    Return Policy

    You need to have a Return Authorization (RA) number before returning any products to HSSL Technologies.

    For a hard copy of this form and a shipping label, please include your request in the form below.

    You can also request an RA online by submitting an RA Request via email. Once you have provided HSSL Technologies with the appropriate information, we will contact you with an assigned RA number.

    Defective or DOA Products

    DOA or defective products are returned for REPLACEMENT ONLY with the same product/model. Deviations from this policy may result in a 20% Returns Processing Service Charge.

    • Defective products must be in the original factory carton with all original packing materials.
    • The Return Authorization number must be on the shipping label, not the carton. Please do not write on the carton.
    • Returns must be shipped freight prepaid. Products received freight collect, without an RA number, or not approved for return will be refused.
    • Return Authorization numbers are valid for fourteen (14) days only. Products returned after expiration will be refused.
    • HSSL credits are based on the purchase price or current price, whichever is lower.

    General Return Terms

    You may return most new, unopened items within 30 days of delivery for a full refund. We will also pay return shipping costs if the return is a result of our error (e.g., you received an incorrect or defective item).

    You should expect to receive your refund within approximately six weeks of giving your package to the return shipper. This period includes:

    • 5–10 business days for us to receive your return from the shipper
    • 3–5 business days for us to process your return
    • 5–10 business days for your bank to process the refund

    If you need to return an item, please Contact Us with your order number and product details. We will respond quickly with instructions for returning items from your order.


    Shipping Policy

    We can ship to virtually any address in the world. Note that there are restrictions on some products, and certain products cannot be shipped to international destinations.

    When you place an order, we will estimate shipping and delivery dates based on the availability of your items and the shipping options you select. Depending on the provider, estimated shipping dates may appear on the shipping quotes page.

    Please also note that shipping rates for many items are weight-based. The weight of each item can be found on its product detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

    Has my order shipped?

    Click the "My Account" link at the top right hand side of our site to check your orders status.

    How do I change quantities or cancel an item in my order?

    Click the "My Account" link at the top right hand side of our site to view orders you have placed. Then click the "Change quantities / cancel orders" link to find and edit your order. Please note that once an order has begun processing or has shipped, the order is no longer editable.

    How do I track my order?

    Click the "My Account" link at the top right hand side of our site to track your order.

    My order never arrived.

    Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.

    An item is missing from my shipment.

    Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.

    My product is missing parts.

    Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.

    When will my backorder arrive?

    Backordered items are those which our suppliers are unable to predict when they will have more in stock, but as soon as they do, we will be able to ship the item to you.

    Warranty

    (Manufacturer Standard Warranty) - Not Clear what product you need or can't find your specific product/service part number? Call us +1 888 988 5472 | Fax: +1 888 920 3445 . You can also use the quote request page

    Why Choose HSSL?

    We connect businesses with the right technology solutions to power growth, security, and efficiency.

    Expertise

    Backed by years of industry knowledge, our specialists understand the challenges modern businesses face.

    Partnerships

    We collaborate with top-tier technology providers to bring you innovative & high-performance products.

    End-to-End Support

    Our dedicated support ensures your systems stay optimized, secure, and ready for what’s next.

    Scalable Solutions

    Our adaptive approach ensures your IT infrastructure evolves seamlessly as your business expands.

    Expert in IT & Security Solutions

    At HSSL, we specialize in delivering cutting-edge IT infrastructure, cloud, and cybersecurity services that empower businesses to thrive in a digital-first world. Our trusted professionals provide reliable insights on:

    • Digital Transformation Strategy

      Empowering businesses to adapt and grow through modern, secure, and scalable digital infrastructure.

    • Advanced Cybersecurity

      Protecting your organization from digital threats with proactive monitoring and smart security frameworks.

    • Cloud & Infrastructure Management

      Optimizing cloud performance and IT operations for seamless scalability and improved business agility.

    • Data Backup & Recovery

      Ensuring business continuity through secure data management, automated backups, and rapid recovery solutions.

    • Network & Endpoint Solutions

      Delivering secure, high-performance networking systems that keep your business connected and efficient.

    • Technology Consulting

      Guiding organizations toward smarter IT investments and solutions that align with their long-term goals.

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    Culver Drive, 340 Irvine, CA 92604

    Tel 888.988.5472

    Copyright © HSSL Technologies. All Rights Reserved. HSSL Technologies are registered trademarks of HSSL Technologies. All other trademarks and registered trademarks brands are the sole property of their respective owners.

    HSSL Technologies (US) © 2025. All Rights Reserved.
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