Will the Drive Perform at Its Maximum Speed During All Read/Write Operations?

Last Update: October 5th, 2026
Article ID: 624678

No. The Plugable Thunderbolt 3 NVMe SSD can reach sequential transfer speeds of up to 2400+ MB/s read and 1800+ MB/s write, but real-world performance will vary depending on the host computer, operating system, file system, application, and workload.

Why Can Read and Write Performance Vary?

The advertised maximum speeds represent sequential transfer performance under suitable conditions. Actual read and write speeds can vary based on several factors, including:

  • The size, number, and type of files being transferred
  • The application or benchmark being used
  • The operating system
  • The file system, such as APFS, exFAT, or NTFS
  • The Thunderbolt 3 and PCIe capabilities of the host computer
  • Other system activity occurring during the transfer

Some Thunderbolt 3 computers use a PCIe x2 connection rather than PCIe x4, which can reduce the maximum available throughput of the drive.

Maximum benchmark results should therefore be treated as an indication of the drive's peak sequential performance rather than the speed expected during every file transfer or workload.

Applicable To

  • TBT3-NVME480, TBT3-NVME512, TBT3-NVME1TB, TBT3-NVME2TB