Rosewill RSV-S4-6G storage enclosure

RSV-S4-6G SATA 150 & 300 4 x Hot-Swappable 3.5" Drive Bays RAID 0, 1, 10, 5, 5+spare, Spanning and JBOD (via Bundled RR622 RAID Controller Card) - Chipset: SiliconImage 3726; RocketRAID 622: Marvell 88SE9128.
- HDD Trays: 4 Hot-Swappable 3.5".
- Maximum Capacity: 12TB (3 TB per Bay).
- Cooling Fan: 3.15" Ball Bearing Fan.
- Bundled with RR622 RAID controller card for over 200MB/s RAID 5 performance.
- Dual-port eSATA 6Gb/s PCIe 2.0 x1 RAID controller supports up to 2 units or 8 hard drives in a single or multiple RAID array.
- Backward compatible with PCIe 1.0.
- Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD.
- Supports online expansion to expand capacity without the need to recreate the RAID volume and erase the existing data.
- Built-in real time hard drive health monitoring and e-mail notification for critical events.
- Supports PC, Linux and MAC OS, including Windows 7 and Snow Leopard.
- Accesses four hard drives using only one cable.
- Host interface: eSATA with Port Multiplier.
- Drive interface: 4 x 3.5" SATA I / SATA II.