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Silver aluminium enclosure with built-in fan, 3.94 x 1.18 x .39 inches

Yottamaster

Yottamaster 40Gbps M.2 NVMe Drive Enclosure with Fan

SKU CH-WA1J-32KSK

Tool-free M.2 NVMe enclosure with 40Gbps USB4, active fan cooling and 4TB support

  • Size40 Gbit/s-NVME
  • Drive interface40 Gbit/s-NVME
  • Max capacity per bayUp to 4 TB
  • Team affiliationExternal Hard Drive
  • Supported operating systemsLaptop, Gaming Console, Desktop, Smartphone
  • Product colorSilver
  • 40Gbps transfer speed moves 3GB files in one second
  • Active cooling with built-in fan and aluminium housing prevents SSD overheating
  • Tool-free design secures M.2 NVMe drives in three seconds
  • Supports M-Key NVMe sizes 2230, 2242, 2260 and 2280 up to 4TB
  • Includes dual-head cable with USB-C to C 40Gbps and USB-C to A 10Gbps

40Gbps USB4 NVMe Enclosure

The Yottamaster YRM2 40GBPS-NVME is a silver aluminum and plastic enclosure that accepts M-key M.2 NVMe SSDs in 2230, 2242, 2260 and 2280 sizes. It supports drives up to 4TB and connects via a USB4 interface rated at 40Gbps. A low-noise fan, bi-directional vents and a silicone thermal pad provide active cooling for sustained workloads.

Suits users needing portable high-speed NVMe storage

This enclosure suits users who want tool-free SSD swaps and 40Gbps transfer potential on Thunderbolt 4 or USB4 hosts. It is not for buyers with B-key M.2 drives or those requiring an included AC power adapter for bus-powered operation limits.

40Gbps USB4 interface with 2-in-1 cable

The decisive specification is the USB4 40Gbps interface paired with an included 2-in-1 cable offering USB-C to C at 40Gbps and USB-C to A at 10Gbps. Tested read and write speeds reach 2831 and 2787 MB/s respectively on Thunderbolt 4 laptops.

How it compares

Measured against everything we stock in External Drive Enclosures, at today’s prices. Recalculated every night.

Price $83.99
Pricier than about 75% of the 821 comparable items (median $30.99).

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Specifications

Product
Brand nameYottamaster
Product lineYRM2
Model name40 Gbit/s-NVME
Part number6942227118974
Product colorSilver
Product typeEnclosure
Storage
Drive interface40 Gbit/s-NVME
Max capacity per bayUp to 4 TB
Ports & slots
Thunderbolt 3 supportNO
Power
Power adapterNo
Power detailsNo
Size & build
Size40 Gbit/s-NVME
Main materialAluminum / Plastic
Product dimensions3.94 × 1.18 × 0.39 in
Product weight1.06 oz
Compatibility
Supported operating systemsLaptop, Gaming Console, Desktop, Smartphone
In the box
In the box40 Gbit/s M.2 NVMe SSD Enclosure with cooling fan
More details
Cooling fansYes
Team affiliationExternal Hard Drive

Questions about this item

Which M.2 NVMe SSD lengths does the Yottamaster enclosure accept?

The enclosure supports M-Key NVMe SSDs in 2230, 2242, 2260 and 2280 sizes, up to 4 TB capacity.

Will the 40 Gbps USB-C to C cable work with a Thunderbolt 3 port on my laptop?

The USB4 cable is compatible with Thunderbolt 3 hosts, but the 40 Gbps link requires a Thunderbolt 4 or USB4 port; on Thunderbolt 3 it will negotiate a lower speed.

How can I verify the enclosure is delivering the advertised 40 Gbps performance after setup?

Run a sequential read/write benchmark such as CrystalDiskMark on the attached SSD; on a Thunderbolt 4 host you should see speeds approaching 2831 MB/s read and 2787 MB/s write.

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