How do I disassemble it to install a larger nvme drive?

Look at the last picture for the product for install instructions. I'm not sure what you mean by larger. It only fits up to a 2280 size and 4TB max capacity.

Questions & Answers: ORICO Aluminum M.2 NVMe SATA SSD Enclosure Adapter, USB C 3.2 Gen 2 10Gbps NVME, 5Gbps NGFF SATA PCIe M-Key(B+M Key) 2230/2242/2260/2280, External M2 Reader UASP Trim- PWDM2-BK

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ORICO Aluminum M.2 NVMe SATA SSD Enclosure Adapter, USB C 3.2 Gen 2 10Gbps NVME, 5Gbps NGFF SATA PCIe M-Key(B+M Key) 2230/2242/2260/2280, External M2 Reader UASP Trim- PWDM2-BK

10Gbps High Speed M.2 NVMe/SATA Enclosure: ORICO M.2 reader is compatible with M.2 NVMe M Key/B+M Key and M.2 NGFF SATA B+M Key SSD (based on SATA). The maximum capacity of SSD is 4TB.
Portable and Durable : The ultra-slim aluminum case makes the enclosure portable, durable, and ideal for traveling. When using NVMe SSD, the transmission rate is 10Gbps and the read and write speed is 1000MB/s. When using M.2 SATA SSD, the transmission rate is 5Gbps, and the reading and writing speed is 450MB/s.
Tool-Free Installation: Integrated aluminum body + tool-free push-cover SSD tray make installation faster and easier.
Compatible All Devices: This SSD adapter adopts external USB-C output interface, support plug and play, no drive, more convenient to use. It can be used on PC, laptop, smart TV, smart router, PS4, Type-C mobile phone and other devices.

$15^.99 –