64 GB 2.5" Serial ATA III. Read speed: 250 MB/s. Write speed: 170 MB/s. SLC. What's in the box. Solid State Drive; documentation. Summary. Solid State Drives (SSDs) are fast becoming a real force with respect to storage in the computer industry. With no moving parts, storage is no longer bound by mechanical barriers to higher performance. HP's Enterprise Class SLC (Single-Level Cell) SSD offers sustained performance beyond that of SAS 15k rpm HDDs (Hard Disk Drives).. Features. SSD capacity. 64 GB. SSD form factor. 2.5". Interface. Serial ATA III. Memory type. SLC. Data transfer rate. 3 Gbit/s. Read speed. 250 MB/s. Write speed. 170 MB/s. Other features. Wi-Fi. No. Internal. Yes