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Does the rear eSata connector on ReadyNAS boxes provide 12 V and 5 V power for an SSD/HDD?
I.e. is it active or passive? My NAS is an RN102.
The eSATA connector on all ReadyNAS does not provide power.
The eSATA connector on all ReadyNAS does not provide power.
Sandshark wrote:
The eSATA connector on all ReadyNAS does not provide power.
Yes. But that isn't answering the passive/active question.
Active and Passive are not terms normally associated with eSATA. Since the title asks about power, I assumed that's what's being asked about. If it is not, please explain what you mean by active and passive.
Sandshark wrote:
Active and Passive are not terms normally associated with eSATA. Since the title asks about power, I assumed that's what's being asked about. If it is not, please explain what you mean by active and passive.
It's not a phrase I'd heard either, but it shows up in a couple of places - one being here:
https://en.wikipedia.org/wiki/Serial_ATA wrote:
Desktop computers without a built-in eSATA interface can install an eSATA host bus adapter (HBA); if the motherboard supports SATA, an externally available eSATA connector can be added. Notebook computers with the now rare Cardbus[56] or ExpressCard[57] could add an eSATA HBA. With passive adapters, the maximum cable length is reduced to 1 metre (3.3 ft) due to the absence of compliant eSATA signal-levels.
From the context, I am thinking that a "passive" adapter is one that directly ties the eSATA connector to the SATA controller on the motherboard - and that an "active" one uses its own eSATA controller.
SATA does have a cable length limitation of 1 meter, but eSATA itself is spec'd for 2 meters.
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