Wow! What a difference, I don’t have any of my own empirical data but it sure is faster than usb2. I’m used to having playlists ake a while to load from my drobo s to my apple tv and iPad, but not any longer. I’m seeing that overall transfer rate is supposed to be ~ 5 times faster than USB 2, from 60mb/sec to 300mb/sec with Esata.
what’s your disk types and OS, please?
1 x Western Digital WD20EARS 2TB Caviar Green
1 x WD WD15EADS 1.5TB CG
1 x Seagate Barracuda 7200.11 1TB
1 x WD WD10EADS 1TB CG
1 x WD WD25EZRS 2.5TB CG
Windows 7 Home Premium Gateway DX4860 ef31p i5 2320, 6 GB RAM w/ Syba SD-SA2PEX-2E SATA II Controller Card
I have about 40% free space used , with 1.35TB of 3.15TB (I have dual drive redudancy on)[hr]
sounds promising… now if only i could get my dell xps L502x esata to work 
(thanks sky - will check more on that)
Some things to look at to get eSATA to work:
- For on-board ports, make sure it’s turned on in BIOS.
- For on-board ports, make sure your BIOS version is up-to-date.
- Make sure the driver version is up-to-date.
- The DroboS will only work with a true eSATA chipset, not a SATA chipset. Look in device manager to check the chipset manufacturer; Intel and Silicon Image (SiI) chipsets usually work, JMicron chipsets do not. Some Intel drivers have a 2TB or smaller volume size limit. Some chipsets do not have port-multiplier support so will only mount the first volume.
- If all else fails, try one of our tested cards listed in our KB article at http://support.drobo.com/app/answers/detail/a_id/545.