QNAP TS-419PII Tower NAS providing data sharing, all-in-one business server features, advanced RAID data protection, built-in iSCSI target service, 256-bit volume-based encryption, and hot-swappable hard drive design. Marvell 2.0 GHz CPU and 512 MB DDRII RAM. Supports RAID 0/ 1/5, JBOD. Do Not Include HDDs. Please check QNAP.com for list of compatible HDDs.