TarDisk 256GB | Storage Expansion Card for MacBook Pro (CD Drive) | P1315A Hybrid Drive: Simplest way to increase onboard  MacBook Storage. Flush, seamless integration into SDXC slot for PCIe connection to system. Additional storage space is added directly to existing Hard Drive presenting the user with a single, larger, unified volume. Storage: 256GB integrated flash memory with precision UniBody Aluminum enclosure. Speed: 95MB/sec read, 90MB/sec write. Fits: 13" & 15" MacBook Pro models with CD-drives.