Built on proven & award-winning Beyond RAID™ technology, the Drobo B800fs allows the sharing of files with all computers on the network & keep your vital business data protected with Drobo Sync offsite replication. Drobo model B800fs connects seamlessly to your existing Ethernet network & supports both Windows & Mac computers. Drobo Apps give you the freedom to customize your Drobo to meet your own unique set of requirements. Contains the WD Red HDD’s with WD’s NASware technology for enhanced efficiency, reliability & compatibility Features Up to 8 x 3.5” SATA I/II/III hard disk drives (sold separately) Drives of any manufacturer, capacity, spindle speed, and/or cache can be used Beyond RAID™ technology with single- or dual-drive redundancy Keep vital data protected with Drobo Sync offsite replication Supports CIFS/SMB & AFP network protocols Dual, fixed cooling fans Ethernet features include connection failover & jumbo frames (up to 9000 bytes MTU) Supports Mac OS X 10.5.8 or later, 10.6.8 or later, 10.7.0 or later (Intel only) Supports Windows 7 SP1, Vista SP1, XP SP3 (all 32 & 64 bit)