{"product_id":"owc-express-4m2-ultra-thunderbolt-5-four-slot-nvme-ssd-raid-storage","title":"OWC Express 4M2 Ultra Thunderbolt 5 Four-Slot NVMe SSD RAID Storage","description":"\u003cp\u003eThe OWC Express 4M2 Ultra is a four-slot Thunderbolt 5 NVMe RAID enclosure built for creative professionals who need the fastest compact storage available. Pre-configured with four OWC Aura Ultra IV NVMe SSDs and powered by Thunderbolt 5's full 80Gb\/s bandwidth, it delivers real-world speeds of up to 6,622MB\/s — more than twice the throughput of Thunderbolt 4 solutions. Whether you're ingesting 12K RAW footage on set, editing 8K multi-cam sequences in post, or batch processing thousands of high-resolution images, the Express 4M2 Ultra keeps up without breaking a sweat.\u003c\/p\u003e\n\u003cp\u003eThe aircraft-grade aluminium body provides passive cooling and rugged protection, while a smart adaptive fan only kicks in during sustained heavy workloads — keeping things quiet when you need to concentrate. RAID 0, 1, 4, 5, and 10 are all supported via the included SoftRAID Premium licence (3 years included), giving you full control over the balance between speed and redundancy. The second Thunderbolt 5 port lets you daisy-chain up to four additional Express 4M2 Ultra units into a single massive volume — up to 128TB — or connect up to five additional Thunderbolt devices and one USB peripheral downstream.\u003c\/p\u003e\n\u003cp\u003eAlready own the bare enclosure? The four M.2 drive bays accept any standard M.2 2280 or 2242 NVMe SSD, so you can upgrade capacity whenever you're ready without replacing the chassis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 6,622MB\/s real-world read speeds over Thunderbolt 5 (80Gb\/s) — over 2x faster than Thunderbolt 4 solutions\u003c\/li\u003e\n\u003cli\u003eFour M.2 NVMe SSD bays pre-populated with OWC Aura Ultra IV PCIe 4.0 SSDs\u003c\/li\u003e\n\u003cli\u003eFlexible RAID: RAID 0, 1, 4, 5, and 10 supported via SoftRAID Premium (3-year licence included)\u003c\/li\u003e\n\u003cli\u003eThunderbolt 5 daisy-chaining: scale up to 128TB as a single volume across four enclosures\u003c\/li\u003e\n\u003cli\u003eSecond Thunderbolt 5 port for up to five additional Thunderbolt devices plus one USB peripheral\u003c\/li\u003e\n\u003cli\u003eDisplay support: up to two 8K displays at 120Hz or three 4K displays at 144Hz\u003c\/li\u003e\n\u003cli\u003eAircraft-grade aluminium body with silent passive cooling and smart adaptive fan\u003c\/li\u003e\n\u003cli\u003eBackwards compatible: Thunderbolt 4, Thunderbolt 3 (Mac), and USB4 — up to 3,200MB\/s\u003c\/li\u003e\n\u003cli\u003eHot-plug support and bootable on macOS across all four bays\u003c\/li\u003e\n\u003cli\u003eIncludes 90W external power supply and 0.7m Thunderbolt 5 cable\u003c\/li\u003e\n\u003cli\u003eStrada included: 2 licences for 90 days of remote collaborative file access (no cloud required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOWC Express 4M2 Ultra Thunderbolt 5 Storage Solution (pre-populated with 4x NVMe SSDs)\u003c\/li\u003e\n\u003cli\u003e0.7m (28\") Thunderbolt 5 80Gb\/s cable\u003c\/li\u003e\n\u003cli\u003e90W external power supply with UK power cable\u003c\/li\u003e\n\u003cli\u003e3-year SoftRAID Premium licence (serial number on device)\u003c\/li\u003e\n\u003cli\u003e2x Strada licences (90 days)\u003c\/li\u003e\n\u003cli\u003eQuick Start Guide (digital)\u003c\/li\u003e\n\u003cli\u003e2-year OWC limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this compatible with my Mac?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe Express 4M2 Ultra works with any Mac with a Thunderbolt 3, 4, or 5 port. Thunderbolt 5 speeds (up to 6,622MB\/s) require macOS 15 Sequoia or later on an M3\/M4\/M5 Mac or a Thunderbolt 5 PC. Thunderbolt 4 and USB4 connections on Apple silicon Macs require macOS 14.6 or later. Compatible Macs include MacBook Pro (2016 onwards), MacBook Air (M1 onwards), iMac (2017 onwards), Mac mini (M1 onwards), Mac Studio (all), and Mac Pro (2019 onwards).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDo I need to configure RAID before use?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eNo — the Express 4M2 Ultra ships pre-formatted as a 4-disk RAID 0 volume for Mac, so it's ready to use straight out of the box. If you want to change the RAID level (for example to RAID 5 for redundancy, or RAID 10 for a balance of speed and protection), launch SoftRAID, which is included, and reconfigure to suit your workflow. PC users should refer to OWC's Mac-to-Windows SoftRAID Volume Conversion guide before use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I use my own M.2 SSDs?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. The four bays accept M.2 2280 and M.2 2242 NVMe SSDs with an M Key connector. PCIe Gen 3 SSDs work, though PCIe Gen 4 or later is recommended for best performance. SSDs with a heatsink are not supported. Note: Western Digital SN5xx series M.2 SSDs are not compatible with this enclosure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat is SoftRAID and is it really included?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eSoftRAID is the world's leading Mac and PC RAID management application — developed by OWC. It lets you create, monitor, and manage RAID volumes, with predictive health monitoring that alerts you to drive issues well before failure. A full 3-year SoftRAID Premium licence is included with every Express 4M2 Ultra. The serial number is printed on a label inside the device.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow does daisy-chaining work?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe second Thunderbolt 5 port lets you chain up to four Express 4M2 Ultra enclosures together as a single unified volume — reaching up to 128TB — or connect up to five additional Thunderbolt devices (displays, docks, other drives) plus one USB peripheral downstream. No hub required.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eThunderbolt 5 (80Gb\/s) \/ USB4 \/ Thunderbolt 4 \/ Thunderbolt 3 (Mac)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Bays\u003c\/th\u003e\n\u003ctd\u003e4x M.2 NVMe (PCIe 4.0) — M.2 2280 and 2242 M Key\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePre-installed SSDs\u003c\/th\u003e\n\u003ctd\u003e4x OWC Aura Ultra IV PCIe 4.0 NVMe M.2 2280\u003cbr\u003e\u003cem\u003e*OWC reserves the right to replace or upgrade to equivalent or better components.\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Speed (TB5)\u003c\/th\u003e\n\u003ctd\u003eUp to 6,622MB\/s (PCIe 4.0 SSDs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Speed (TB4\/USB4)\u003c\/th\u003e\n\u003ctd\u003eUp to 3,200MB\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRAID Levels\u003c\/th\u003e\n\u003ctd\u003eRAID 0, 1, 4, 5, 10 \/ JBOD via SoftRAID\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDefault RAID\u003c\/th\u003e\n\u003ctd\u003eRAID 0 (pre-formatted for Mac)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHot Plug\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBoot Support\u003c\/th\u003e\n\u003ctd\u003eYes — all four bays bootable on macOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay Support\u003c\/th\u003e\n\u003ctd\u003eUp to 2x 8K @ 120Hz or 3x 4K @ 144Hz (via DisplayPort 2.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChipset\u003c\/th\u003e\n\u003ctd\u003eIntel Barlow Ridge JHL9480\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePorts\u003c\/th\u003e\n\u003ctd\u003e2x Thunderbolt 5 (USB-C) — 1 host + 1 daisy-chain\/downstream\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Supply\u003c\/th\u003e\n\u003ctd\u003eExternal 90W (100–240V universal), included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling\u003c\/th\u003e\n\u003ctd\u003ePassive aluminium body + 40mm smart adaptive fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHousing\u003c\/th\u003e\n\u003ctd\u003eAircraft-grade aluminium, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e123 x 117 x 60 mm (H x L x W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e928g (enclosure with drives)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eCE, FCC, UKCA, VCCI, RCM, IC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2 years OWC limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/eshop.macsales.com\/manuals\/owc-tb5-express-4m2-ultra-support-manual\" target=\"_blank\"\u003eDownload OWC Express 4M2 Ultra Support Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eCompatibility\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003emacOS\u003c\/th\u003e\n\u003ctd\u003emacOS 14 Sonoma, macOS 15 Sequoia, macOS 26 Tahoe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWindows\u003c\/th\u003e\n\u003ctd\u003eWindows 11 (version 22H2 or later)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLinux\u003c\/th\u003e\n\u003ctd\u003eYes (latest Ubuntu recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThunderbolt 5 (Mac)\u003c\/th\u003e\n\u003ctd\u003eRequires macOS 15 or later — M3, M4, M5 MacBook Pro, Mac Studio, Mac mini (Late 2024+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThunderbolt 4\/USB4 (Mac)\u003c\/th\u003e\n\u003ctd\u003eRequires macOS 14.6 or later — Apple silicon Macs (M1, M2, M3, M4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThunderbolt 3 (Mac)\u003c\/th\u003e\n\u003ctd\u003eRequires macOS 15 or later — Intel Macs from 2016 onwards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePC\u003c\/th\u003e\n\u003ctd\u003eThunderbolt 5 requires Windows 11 (22H2+). USB4\/Thunderbolt 4 PCs also compatible.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNot Compatible\u003c\/th\u003e\n\u003ctd\u003eWD SN5xx series M.2 NVMe SSDs (third-party). Boot Camp not supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eProduct Videos\u003c\/h5\u003e\n\u003cp\u003e\u003ciframe title=\"OWC Express 4M2 : The Numbers Are Insane\" src=\"https:\/\/www.youtube.com\/embed\/c6CWCpBrfZ8\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e \u003ciframe title=\"OWC Express 4M2 Ultra Review – Thunderbolt 5 NVMe SSD RAID Enclosure for Creators\" src=\"https:\/\/www.youtube.com\/embed\/bCUEb_Hx-qs\" height=\"752\" width=\"1337\"\u003e\u003c\/iframe\u003e \u003ciframe title=\"OWC Express 4M2 Ultra Thunderbolt 5 Storage\" src=\"https:\/\/www.youtube.com\/embed\/pW9GwHkkk7k?rel=0\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"OWC","offers":[{"title":"4TB","offer_id":56758726689154,"sku":"OWCTB5ULT4MT04","price":2381.0,"currency_code":"GBP","in_stock":true},{"title":"8TB","offer_id":56758731571586,"sku":"OWCTB5ULT4MT08","price":3761.49,"currency_code":"GBP","in_stock":true},{"title":"16TB","offer_id":56758731604354,"sku":"OWCTB5ULT4MT16","price":5517.49,"currency_code":"GBP","in_stock":true},{"title":"32TB","offer_id":56758731637122,"sku":"OWCTB5ULT4MT32","price":10172.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/img_01.jpg?v=1783598071","url":"https:\/\/flexxmemory.co.uk\/products\/owc-express-4m2-ultra-thunderbolt-5-four-slot-nvme-ssd-raid-storage","provider":"Flexx International Ltd","version":"1.0","type":"link"}