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- OWC Express 4M2 Thunderbolt 3 Enclosure for 4 x M2 SSD without SoftRAID software OWC Express 4M2 Thunderbolt 3 Enclosure for 4 x M2 SSD without SoftRAID software
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4-Slot PCIe NVMe M.2 SSD Enclosure Thunderbolt 3. Customizable for any workflow with up to 32TB capacity and up to 2800MB/s performance.
When using Express 4M2 with Mac Studio (M2 Max or M2 Ultra) or Mac Pro (M2 Ultra), some drives may require macOS 13.5 or later for proper operation.
Highlights
- High-Speed Thunderbolt Connectivity: The Express 4M2 harnesses the power of Thunderbolt 3, providing incredibly fast data transfer speeds. With up to 2800MB/s of performance, it's ideal for handling large files and demanding tasks.
- Four-Slot Flexibility: Accommodating up to four NVMe M.2 SSDs up to 32GB, this enclosure allows you to build a high-capacity, custom storage solution tailored to your needs.
- Versatile Compatibility: The Express 4M2 is compatible with a wide range of NVMe SSDs, giving you the freedom to choose the brands and capacities that work best for your projects.
- Sleek and Compact Design: Its compact aluminum enclosure not only looks great but also dissipates heat efficiently, ensuring your SSDs stay cool even during extended usage.
- Easy Setup and Maintenance: With easy access to the M.2 SSD slots, setup and maintenance are a breeze. Plus, with Thunderbolt technology, it's hot-pluggable for quick drive swaps. Thunderbolt cable included.
When using Express 4M2 with Mac Studio (M2 Max or M2 Ultra) or Mac Pro (M2 Ultra), some drives may require macOS 13.5 or later for proper operation.
Elevate your storage capabilities with the OWC Express 4M2, a four-slot Thunderbolt NVMe M.2 SSD enclosure. This sleek and powerful enclosure allows you to supercharge your data storage, making it the perfect companion for professionals, creatives, and anyone in need of rapid and reliable data access. With its versatile design and high-speed Thunderbolt connectivity, the Express 4M2 unlocks a new world of storage possibilities.
Upgrade your storage experience with the OWC Express 4M2 and experience the benefits of ultra-fast NVMe M.2 SSDs combined with the versatility of Thunderbolt connectivity, all in a sleek and compact design.
DisplayPort
Display connection flexibility is yours with a convenient DisplayPort located right on the rear of the OWC Express 4M2. There's no need to worry about adapters or extra long cables. Just plug your display directly into the Express 4M2 and you're all set.
Multi-Drive
Configure and reconfigure your storage however you need by combining multiple OWC Express 4M2 drives together on Mac and Windows. Utilize the amazing capabilities of SoftRAID to RAID across multiple Express 4M2 drives, or add multiple Express 4M2 drives to your storage pool using Windows Storage Spaces. Looking for this unit with SoftRAID software? Click here.
Connect to Thunderbolt and Thunderbolt 2 Systems with Ease
The OWC Express 4M2 is fully backward compatible with Thunderbolt and Thunderbolt 2. Utilize Thunderbolt 3 performance to work at full speed, and step back to Thunderbolt or Thunderbolt 2 whenever connectivity compatibility is needed for your workflow. Add a Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter along with the appropriate Thunderbolt cable, and you're all set.
Quality You Can Trust
Like all OWC drives, the OWC Express 4M2 is built to the highest standards of reliability and performance and Thunderbolt Certified for Mac and Windows. Because 100% reliability is always the goal, Express 4M2 is rigorously quality tested and backed by our one-year limited warranty.
1. Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
2. Advanced RAID features require RAID management software (such as OWC SoftRAID, available separately). For a unit with SoftRAID, please Click Here.
Includes
(1) OWC Express 4M2 External Storage Enclosure
(1) 0.7M Thunderbolt Cable
(1) Power Supply and Power Cable
(1) Quick Start Guide for OWC Express 4M2
(1) Assembly Manual & User Guide for OWC Express 4M2
1-Year OWC Limited Warranty
- Number of Bays: 4
- Drive Bays: 4 bays supporting: M.2 drives
- Supports: NVMe M.2 SSDs with 2280 form factor and "M Key" connector type. Single- and double-sided SSDs are supported. Each bay offers PCIe 3.0 x1 performance
- Mechanisms Supported: NVMe M.2 SSD (2280 Form Factor, M-key, Single or Double Sided)
- 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 Features: Software RAID
- Power Delivery: Two Thunderbolt 3 ports with 15W power delivery each.
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Device Ports:
- (1) Host Port - Thunderbolt 3 (USB-C) up to 40 Gb/s (5000 MB/s)
- (1) Thunderbolt 3 (USB-C) Port
- (1) DisplayPort Port
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Display Support:
- Up to one 4K display @ 60Hz,
- or one 4K display @ 30Hz,
- or two 4K displays @ 60Hz
- Display Support by Port: DisplayPort 1.2: Up to 4K @ 60Hz
- Data Transfer Rate (Maximum): Thunderbolt 3 : Up to 40 Gb/s (or 5000 MB/s)
- Chipset / Controller: (1) Thunderbolt 3 - Alpine Ridge DSL6540
- MTBF (Mean Time Between Failures): Varies depending on drive mechanism installed
- Contact Start Stops: Varies depending on drive mechanism installed
- Host Interface Requirements: Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt1)
- Driver Required: No
-
Other Requirements:
- When using Express 4M2 with Mac Studio (M2 Max or M2 Ultra) or Mac Pro (M2 Ultra), some drives may require macOS 13.5 or later for proper operation.
- When using one or more SSDs with 512 byte sectors, macOS 10.13 or later is required.
- External Power Adapter: Yes
- Power Supply: External UL-listed universal auto-switching power supply
- Additional Power Supply: Need an additional power supply? Secondary/replacement power supplies are also available.
- AC Input: 100-240V, 50-60Hz, 1-2A
- DC Output: +12V, 6A
- Wattage: 72W
- Replacement Adapter Part Number: OWCPWR12V6A (sold separately)
- Cooling: (1) 60mm 2,800RPM cooling fan
- Security Slot: No
- Power/Activity LED: Yes
- Housing Color: Black
- Housing Material: Aluminum
-
Dimensions:
- Height: 6.0 cm (2.4 in)
- Length: 11.3 cm (4.4 in)
- Width: 13.6 cm (5.4 in)
- Weight: 800.0 g (1.76 lbs)
-
Certifications:
- CE
- FCC
- Country of Origin: Taiwan
- TAA Compliance: Yes
-
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)
- Thunderbolt 2/Thunderbolt compatibility: Requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
- Advanced RAID features: require RAID management software (such as OWC SoftRAID, available separately).
- Performance: Reads and 711MB/s Writes due to the bandwidth of the 1X PCIe3.0 bus.
- Compatibility: When installed, the following SSDs will only be compatible with Windows 10 systems: Hynix Gold P31, Samsung PM981a
- DisplayPort Support: Does not support Dual-Mode DisplayPort (DP++), however it does support Multi-Stream Transport (MST) in Windows 10.
- Dual Display Support: Dual display support, including available resolution and refresh rates, is dependent on host hardware and drivers. Apple silicon M1/M2/M3 Pro, M1/M2/M3 Max, and M1/M2 Ultra Mac models, Apple Intel-based Mac models, and Thunderbolt 4 PCs can support up to two displays at up to 4K @ 60Hz via Thunderbolt. Apple silicon M1/M2/M3 Mac models can support one external display up to 4K @ 60Hz via Thunderbolt.
-
Single Display Support: The following Apple silicon M1/M2/M3 Mac models support a single display over a Thunderbolt port:
- MacBook Pro (14-inch, M3, 2023)
- MacBook Pro (13-inch, M1, 2020) - MacBookPro17,1
- MacBook Pro (13-inch, M2, 2022) - Mac14,7
- MacBook Air (M1, 2020) - MacBookAir10,1
- MacBook Air (M2, 2022) - Mac14,2
- Mac mini (M1, 2020) - Macmini9,1
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Partial DisplayPort 1.4 Support: The following Mac models provide only partial support for DisplayPort 1.4, including limiting resolution to 5K or 6K at 60Hz. Please review Apple's display specifications for your specific Mac to determine the maximum supported resolution and color depth:
- MacBook Pro (15-inch, 2018) - MacBookPro15,1
- MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports) - MacBookPro15,2
- MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports) - MacBookPro15,2
- MacBook Pro (15-inch, 2019) - MacBookPro15,1 and MacBookPro15,3
- MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports) - MacBookPro15,4
- MacBook Pro (16-inch, 2019) - MacBookPro16,1 and MacBookPro16,4
- MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports) - MacBookPro16,2
- MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports) - MacBookPro16,3
- MacBook Air (Retina, 13-inch, 2018) - MacBookAir8,1
- MacBook Air (Retina, 13-inch, 2019) - MacBookAir8,2
- MacBook Air (Retina, 13-inch, 2020) - MacBookAir9,1
- iMac (Retina 5K, 27-inch, 2019) - iMac19,1
- iMac (Retina 4K, 21.5-inch, 2019) - iMac19,2
- iMac (Retina 5K, 27-inch, 2020) - iMac20,1 and iMac20,2
- Mac mini (2018) - Macmini8,1
- Mac Pro (2019) - MacPro7,1
- Mac Pro (Rack, 2019) - MacPro7,1
- Thunderbolt 4 PC Compatibility: Multiple drives will not be recognized by a Thunderbolt 4 PC connected over a Thunderbolt 4 port when using Aura Ultra IV SSDs with the Express 4M2.
- Mac Studio Compatibility: When using Express 4M2 with Mac Studio (M2 Max or M2 Ultra) or Mac Pro (M2 Ultra), some drives may require macOS 13.5 or later for proper operation.
-
Mac OS Compatibility:
- macOS 10.12 Sierra
- macOS 10.13 High Sierra
- macOS 10.14 Mojave
- macOS 10.15 Catalina
- macOS 11.x Big Sur
- macOS 12.x Monterey
- macOS 13.x Ventura
- macOS 14.x Sonoma
-
PC OS Compatibility:
- Windows 10 32-bit Edition
- Windows 10 64-bit Edition
- Windows Server 2019
- Windows Server 2016
- Windows Server 2022
- Windows 11
-
iMac Models:
- iMac | 2017 iMac18,1 - A1418 - EMC3068
- iMac | 2017 iMac18,2 - A1418 - EMC3069
- iMac | 2017 iMac18,3 - A1419 - EMC3070
- iMac | 2019 iMac19,1 - A2115 - EMC3194
- iMac | 2019 iMac19,2 - A2116 - EMC3195
- iMac | 2020 iMac20,1 - A2115 - EMC3442
- iMac | 2020 iMac20,2 - A2115 - EMC3442
- iMac | 2021 iMac21,1 - A2438 - EMC3663 - M1
- iMac | 2021 iMac21,2 - A2439 - EMC3664 - M1
- iMac | 2023 Mac15,4 - A2874 - EMC8207 - M3
- iMac | 2023 Mac15,5 - A2873 - EMC8206 - M3
- iMacPro | 2017 iMacPro1,1 - A1862 - EMC3144
-
MacBook Air Models:
- MacBookAir | 2018 MacBookAir8,1 - A1932 - EMC3184
- MacBookAir | 2019 MacBookAir8,2 - A1932 - EMC3184
- MacBookAir | 2020 MacBookAir9,1 - A2179 - EMC3302
- MacBookAir | 2020 MacBookAir10,1 - A2337 - EMC3598 - M1
- MacBookAir | 2022 Mac14,2 - A2681 - EMC4074 - M2
- MacBookAir | 2023 Mac14,15 - A2941 - EMC8301 - M2
- MacBookAir | 2024 Mac15,12 - A3113 - EMC8611 - M3
- MacBookAir | 2024 Mac15,13 - A3114 - EMC8612 - M3
-
MacBook Pro Models:
- MacBookPro | 2016 MacBookPro13,1 - A1708 - EMC2978
- MacBookPro | 2016 MacBookPro13,2 - A1706 - EMC3071
- MacBookPro | 2017 MacBookPro13,3 - A1707 - EMC3072
- MacBookPro | 2017 MacBookPro14,1 - A1708 - EMC3164
- MacBookPro | 2017 MacBookPro14,2 - A1706 - EMC3163
- MacBookPro | 2017 MacBookPro14,3 - A1707 - EMC3162
- MacBookPro | 2018 MacBookPro15,1 - A1990 - EMC3215
- MacBookPro | 2018 MacBookPro15,2 - A1989 - EMC3214
- MacBookPro | 2018 MacBookPro15,3 - A1990 - EMC3215
- MacBookPro | 2019 MacBookPro15,1 - A1990 - EMC3359
- MacBookPro | 2019 MacBookPro15,2 - A1989 - EMC3358
- MacBookPro | 2019 MacBookPro15,3 - A1990 - EMC3359
- MacBookPro | 2019 MacBookPro15,4 - A2159 - EMC3301
- MacBookPro | 2019 MacBookPro16,1 - A2141 - EMC3347
- MacBookPro | 2019 MacBookPro16,4 - A2141 - EMC3347
- MacBookPro | 2020 MacBookPro16,2 - A2251 - EMC3348
- MacBookPro | 2020 MacBookPro16,3 - A2289 - EMC3456
- MacBookPro | 2020 MacBookPro17,1 - A2338 - EMC3578 - M1
- MacBookPro | 2021 MacBookPro18,1 - A2485 - EMC3651 - M1 Pro
- MacBookPro | 2021 MacBookPro18,2 - A2485 - EMC3651 - M1 MAX
- MacBookPro | 2021 MacBookPro18,3 - A2442 - EMC3650 - M1 Pro
- MacBookPro | 2021 MacBookPro18,4 - A2442 - EMC3650 - M1 Max
- MacBookPro | 2022 Mac14,7 - A2338 - EMC8162 - M2
- MacBookPro | 2023 Mac14,10 - A2780 M2 Pro
- MacBookPro | 2023 Mac14,5 - A2779 M2 Max
- MacBookPro | 2023 Mac14,6 - A2780 M2 Max
- MacBookPro | 2023 Mac14,9 - A2779 M2 Pro
-
Mac Pro Models:
- Mac Pro | 2019 MacPro7,1 - A1991 - EMC3203
- Mac Pro | 2023 Mac14,8 - A2786 - EMC8163 - M2 Ultra
-
Mac Pro Rack Models:
- Mac Pro Rack | 2019 MacPro7,1 - A2304 - EMC3413
- Mac Pro Rack | 2023 Mac14,8 - A2787 - EMC8164 - M2 Ultra
-
Mac Studio Models:
- Mac Studio | 2022 Mac13,1 - A2615 - EMC3988 - M1 Max
- Mac Studio | 2022 Mac13,2 - A2615 - EMC3988 - M1 Ultra
- Mac Studio | 2023 Mac14,14 - A2901 - EMC8292 - M2 Ultra
- Mac Studio | 2023 Mac14,13 - A2901 - EMC8292 - M2 Max
-
Mac Mini Models:
- Macmini | 2018 Macmini8,1 - A1993 - EMC3213
- Macmini | 2020 Macmini9,1 - A2348 - EMC3569 - M1
- Macmini | 2023 Mac14,3 - A2686 - EMC8003 - M2
- Macmini | 2023 Mac14,12 - A2816 - EMC8180 - M2 Pro
-
MacBook Models:
- MacBook | 2015 MacBook8,1 - A1534 - EMC2746 - Core M
- MacBook | 2016 MacBook9,1 - A1534 - EMC2991
- MacBook | 2017 MacBook10,1 - A1534 - EMC3099
-
PC Compatible
PC must have a compatible Thunderbolt port