The SanDisk 128GB OTG Ultra Dual USB Type-C USB 3.1 Pen Flash Drive SDDDC2-128G is a versatile external drive designed for use with laptops, PCs, Macs, and Android devices. With a fast read and write speed of 150 MB/s, this black flash drive offers ample storage capacity for all your files. The dual-drive feature allows for easy transfer of data between different devices, while the removable design provides convenience and portability. Compatible with various USB specifications, this SanDisk product is a reliable choice for those in need of a high-quality memory solution.