{"product_id":"acasis-40gbps-4-bay-hybrid-hdd-nvme-ssd-enclosure-2-hdd-2-ssd","title":"Acasis 40Gbps 4-Bay Hybrid HDD \u0026 NVMe SSD Enclosure – 2 HDD + 2 SSD","description":"\u003ch3\u003eACASIS 40Gbps Hybrid Storage Enclosure\/Dock – 2× HDD \u0026amp; 2× NVMe SSD Bays\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAcasis 40Gbps 4-Bay Hybrid HDD NVMe Enclosure\u003c\/strong\u003e combines two NVMe SSD bays and two SATA HDD bays into a single, space-saving chassis so you can work from fast media and archive to high-capacity drives without swapping devices. The enclosure’s 40Gbps Thunderbolt\/USB4 interface delivers ultrafast transfers for large media files and backups, while hardware RAID modes let you choose speed, redundancy, or simple JBOD capacity. An integrated 8K-capable DisplayPort output supports high-resolution monitoring for editing or playback, and a temperature-controlled fan keeps drives cool under sustained workloads. Ideal for video creators, backup-focused teams, and workstation users who need mixed-tier storage in one reliable box.\u003c\/p\u003e\n\u003ch3\u003eFeatures and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eUp to 76TB maximum raw storage capacity for large project files and long-term backups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e40Gbps Thunderbolt\/USB4 interface for ultra-fast data transfer and low-latency workflows.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e4 hardware RAID modes (RAID 0, RAID 1, JBOD, PM) for flexible balance of performance and protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHybrid design: 2 NVMe SSD bays plus 2 SATA HDD bays for tiered hot\/cold storage in one enclosure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e8K DisplayPort output supporting up to 8K@60Hz for high-resolution monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSmart temperature-controlled fan that automatically adjusts speed above 40°C to protect drives and reduce noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFlat-mounted HDD layout to minimize vibration and improve long-term drive reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e4-Bay Hybrid HDD NVMe Enclosure\u003cbr\u003e12V Power Adapter\u003cbr\u003eUser Manual\u003cbr\u003e50cm 40Gbps Cable\u003cbr\u003eThermal Pad\u003cbr\u003eScrewdriver\u003cbr\u003eScrew\u003cbr\u003eRAID Mode Rotation Card\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Q\u0026amp;A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e \u003cstrong\u003eCan SATA and M.2 NVMe drives be used in the same RAID array?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e According to the product FAQ, the hardware RAID does not support mixing SATA and NVMe drives in one array. Software RAID can combine them if needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e \u003cstrong\u003eCan I control the cooling fan manually?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. The fan runs automatically when internal temperature exceeds 40°C (104°F) and adjusts speed based on system temperature.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e \u003cstrong\u003eWhat maximum DisplayPort resolution and refresh rates are supported?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The built-in DisplayPort supports up to 8K@60Hz and also supports 4K@144\/120Hz and various high refresh-rate 2K modes (exact support depends on host GPU and monitor).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e \u003cstrong\u003eWhich RAID modes are supported?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The enclosure supports RAID 0, RAID 1, JBOD, and PM hardware modes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e \u003cstrong\u003eWhich hosts are supported for the 40Gbps connection?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The product page states it is only compatible with USB4 and Thunderbolt 3\/4\/5 hosts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e \u003cstrong\u003eWhy does each NVMe slot only reach ~20Gbps on this 4-bay hybrid enclosure?\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA:\u003c\/strong\u003e This 4-bay hybrid enclosure is designed with a shared Thunderbolt 40Gbps architecture. Due to internal PCIe lane allocation, each NVMe slot is limited to a maximum of ~20Gbps, even when only one NVMe drive is installed. This design prioritizes stability and multi-drive operation rather than peak single-drive NVMe performance. For better NVMe performance within this model, we recommend using two NVMe drives in a software RAID 0 configuration to better utilize the available bandwidth, or RAID 1 for data protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_2.avif?v=1769096840\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_3.avif?v=1769096931\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_4.avif?v=1769096949\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_5.avif?v=1769096967\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_6.avif?v=1769096982\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_8.avif?v=1769096998\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_7.avif?v=1769097015\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/Acasis_40Gbps_4-Bay_Hybrid_HDD_NVMe_Enclosure_2_HDD_2_SSD_13.avif?v=1769097029\"\u003e\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number \/ SKU:\u003c\/strong\u003e EC-4501(H004)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Storage:\u003c\/strong\u003e Up to 76TB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBays:\u003c\/strong\u003e 2 x NVMe M.2 SSD bays + 2 x 3.5\"\/2.5\" SATA HDD bays (hybrid configuration)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterface:\u003c\/strong\u003e 40Gbps (USB4 \/ Thunderbolt 3\/4\/5 host required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardware RAID Modes:\u003c\/strong\u003e RAID 0, RAID 1, JBOD, PM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay Output:\u003c\/strong\u003e DisplayPort — up to 8K@60Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling:\u003c\/strong\u003e Smart temperature-controlled fan (auto on above 40°C \/ 104°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDrive Mount:\u003c\/strong\u003e Flat-mounted HDD layout to reduce vibration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 year from date of delivery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eDevice Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHost Interface:\u003c\/strong\u003e Compatible with USB4 hosts and Thunderbolt 3, Thunderbolt 4, and Thunderbolt 5 hosts. Not compatible with hosts that do not implement USB4 or Thunderbolt 3\/4\/5.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMac:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with Mac.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWindows:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with Windows PC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOther OS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNo specific OS compatibility statements (Chrome OS, Linux, iPadOS, etc.) were provided from manufacturer. \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInterface Requirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eRequires a host that supports USB4 or Thunderbolt 3\/4\/5 to achieve the 40Gbps interface speed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNot compatible with legacy USB-A, USB 3.2 Gen 2 (10Gbps) only hosts, or other non-USB4 \/ non-Thunderbolt hosts for full functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e This 4-bay hybrid enclosure is designed with a shared Thunderbolt 40Gbps architecture. Due to internal PCIe lane allocation, each NVMe slot is limited to a maximum of ~20Gbps, even when only one NVMe drive is installed. This design prioritizes stability and multi-drive operation rather than peak single-drive NVMe performance. For better NVMe performance within this model, we recommend using two NVMe drives in a software RAID 0 configuration to better utilize the available bandwidth, or RAID 1 for data protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003eProduct Videos\u003c\/h5\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/aBVrkJrI5gU\" title=\"Dual SSD + Dual HDD hard drive enclosure is on its way.\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Acasis","offers":[{"title":"Default Title","offer_id":56254331027842,"sku":"EC-4501","price":178.49,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/5707\/9599\/files\/4fe8e1463d9949c49b849d729c0bc7e5.avif?v=1769083135","url":"https:\/\/flexxmemory.co.uk\/products\/acasis-40gbps-4-bay-hybrid-hdd-nvme-ssd-enclosure-2-hdd-2-ssd","provider":"Flexx International Ltd","version":"1.0","type":"link"}