×

Empower Your Business with Innovation

  • Shop By Category
  • OWC Express 4M2 Four-Slot USB4 (40Gb/s) External Storage Enclosure for NVMe M.2 SSDs - OWCUS4EXP4M2

    SKU # HS-OWCUS4EXP4M2
    Condition # New
    Save big right now
    $238.40
    UPC:
    810179170721
    Availability:
    1-3+ Weeks - ETA
    Safe & Secure Checkout
    In Stock

    Purchase Protection

    Every Order is Protected By BuySafe

    Our commitment to sustainability ensures that every purchase supports responsible operations and a healthier planet.

    SSL Secure Payment

    We make sure your orders are processed as quickly as possible - stocked products are shipped next business day - Vendor direct ship products are processed directly with vendors with vendor leadtime.

    Express Shipping

    Price Match Guarantee

    Your payment is secure

    Your privacy and security are our top priority. Our advanced encrypted payment system protects your information during every transaction.

    Get expert help

    Our team of experienced professionals is always ready to help.

    Product Details

    OWC Express 4M2 Four-Slot USB4 (40Gb/s) External Storage Enclosure for NVMe M.2 SSDs

    The Express 4M2 is made for the most demanding work. It’s built to keep up whether you're backing up footage on set, editing 8K video, or sorting through thousands of high-res photos. It supports up to four NVMe M.2 SSDs (2230, 2242, or 2280) and achieves real-world speeds up to 3200MB/s – and, with flexible RAID options, i.e., 0, 1, 4, 5, and 1+0, users can create the setup that works best for their workflow. Whether that’s max performance, redundancy, or a mix of both. And even when things get intense… multi-camera offloads, long editing sessions, big batch processing, the aluminum shell and smart fans keep it cool and quiet so you’re not dealing with slowdowns, overheating, or distracting noise. It’s fully compatible with USB4, Thunderbolt, and USB-C, so whether you’re working on a Mac or PC, it fits right in and works seamlessly, with no fuss.

    • Highly Capable: Up to 3200MB/s real-world performance
    • Highly Compatible: Use with USB4, Thunderbolt, and USB-C Macs and PCs
    • Highly Reliable: Aircraft grade aluminum offers rugged protection of your installed SSDs while the quiet fans keep everything cool for consistent top speed
    • Near Silent Operation: Engineered with smart, adaptive fans that activate only when needed or under heavy load, making it ideal for uninterrupted creative focus
    • DIY easy: Use your choice of NVMe M.2 2230, 2242, or 2280 SSDs
    • RAID Ready: Certain models include OWC SoftRAID; the fastest and most flexible RAID 0/1/4/5/1+0 (10) tool. Also supports Apple RAID and Windows Disk Manager.
    • Complete: Includes USB-C 40Gb/s cable
    • Worry-free: 2 Year OWC Limited Warranty
     
     

    Specifications

      Drive Bays

      • 4 bays supporting: M.2 SSDs
      • Supports single-sided and double-sided M.2 2280, M.2 2242, M.2 2230 "M Key" drives
      • NVMe SSDs with a heatsink are not supported.
      • Each bay offers PCIe 4.0 x1 performance.

      Hot Plug Support

      • Yes

      Boot Support

      • All four drive bays are bootable on macOS. SSDs with 512 byte sectors require macOS 10.13 or later. Boot Camp is not supported.

      RAID Capable

      • Yes

      RAID Levels Supported

      • RAID 0
      • RAID 1
      • RAID 4
      • RAID 5
      • RAID 10
      • JBOD

      RAID Features

      • Software RAID

      Device Ports

      • (1) Host Port - USB4 (USB-C) up to 40Gb/s (5000MB/s) - USB 3.2 Gen 2 (USB-C) up to 10Gb/s (1250MB/s) backwards compatible

      Power Delivery

      • External UL-listed universal auto-switching power supply

      UASP Support

      • UASP (USB Attached SCSI Protocol) is supported

      Data Transfer Rate (Maximum)

      • USB4 : Up to 40Gb/s (or 5000MB/s)

      Chipset / Controller

      • USB4: Asmedia ASM-2464PDX

      MTBF (Mean Time Between Failures)

      • Varies depending on drive mechanism installed

      Contact Start Stops

      • Varies depending on drive mechanism installed

      Host Interface Requirements

      • Works with any USB 3.2 Gen 2 (USB-C) and later
      • Thunderbolt 3 and later equipped Mac, PC, or Linux system

      Mac OS Compatibility

      • macOS 14.x Sonoma
      • macOS 15.x Sequoia

      PC OS Compatibility

      • Windows 10 32-bit Edition
      • Windows 10 64-bit Edition
      • Windows Server 2019
      • Windows Server 2016
      • Windows Server 2022
      • Windows 11

      Driver Required

      • No

      External Power Adapter

      • Yes

      Power Supply

      • External UL-listed universal auto-switching power supply
      • Need an additional power supply? Secondary/replacement power supplies are also available.

      AC Input

      • 100-240V, 50-60Hz, 1.5A

      DC Output

      • +12V, 4A

      Wattage

      • 48W

      Cooling

      • (2) 40mm 4,000RPM cooling fans

      Security Slot

      • No

      Power/Activity LED

      • Yes

      Housing Color

      • Silver

      Housing Material

      • Aluminum

      Dimensions

      • Height: 13.9 cm (5.5 in)
      • Length: 17.8 cm (7.0 in)
      • Width: 6.0 cm (2.4 in)

      Weight

      • 1.8 kg (3.97 lbs)

      Certifications

      • CE
      • FCC
      • UKCA
      • ICES
      • RCM
      • VCCI

      Ambient Temperature

      • Operating: 32°F to 104°F (0°C to 40°C)
      • Non-Operating: -4°F to 158°F (-20°C to 70°C)

      Altitude

      • Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
      • Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)

      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

      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.

      You May Also Like

      image

      OWC Express 4M2 Four-Slot USB4 (40Gb/s) External Storage Enclosure for NVMe M.2 SSDs - OWCUS4EXP4M2

      Save big right now
      $238.40
      Top

      Don't Miss Out

      Sign up now to receive exclusive perks and unique promotions directly to your inbox.

      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) © 2026. All Rights Reserved.
      american expressdiners clubdiscovermaestromasterpaypalvisa