OWC Express 4M2 OWCUS4EXP4M2 USB4 40 Gb/s Enclosure | NVMe M.2

Move large files faster and keep NVMe storage close to the workstation with the OWC Express 4M2. This USB4 enclosure is built for users who need more than a single-drive adapter: it accepts up to four NVMe M.2 SSDs in 2230, 2242, or 2280 lengths, giving teams a practical way to scale external storage without stepping into a full server chassis. With support for up to 40 Gb/s USB4 connectivity and transfer rates up to 3,200 MB/s, it is well suited to workflows where throughput matters — media editing, scratch storage, project libraries, and portable high-capacity arrays. The four-slot design also makes it easier to balance capacity and performance across multiple drives, which can be useful when building a fast working volume or a dedicated backup target. For professionals who want external NVMe performance without the complexity of a rack system, the Express 4M2 offers a focused answer: dense SSD support, modern connectivity, and a form factor that fits on a desk or in a mobile production kit. It is a strong choice when the cost of slow storage is measured in lost time.