eSATA无需桥接芯片即可直连SATA硬盘，避免协议转换带来的性能损耗。 主板需具备SATA2接口并配置外接转换装置，例如华擎775XFire-eSATA2+主板整合该接口。 由于需外置电源供电，eSATA设备便携性低于USB接口产品。 笔记本Power eSATA接口输出电压5V，仅支持2.5英寸硬盘。 eSATAp (Power over eSATA) eSATAp combines eSATA data and USB 2.0 with 5V and 12V power on one connector, powering external drives without a separate power supply. In computing, eSATAp (also known as Power over eSATA, Power eSATA, eSATA-USB, eSATA/USB Combo, or eSATA USB Hybrid Port/EUHP) is a combination connection for external storage devices. PowereSATA（又称Power Over eSATA）是eSATA的扩展标准，由SATA-IO组织于2008年1月提出（但该组织未正式完成标准制定），通过整合USB接口供电功能解决了传统eSATA无法供电的问题。 An eSATAp cable splits out the power and data parts of the thing so you can connect it to a traditional SATA drive, making it easy to repurpose any of those old drives you have laying around. The eSATAp port, also known as Powered eSATA, Power over eSATA, eSATA/USB combo, or EUHP, combines external SATA signaling with USB power (and occasionally USB data) in a single, keyed receptacle. SATA does not provide power, which means that external 2.5 disks which would otherwise be powered over the USB or Firewire cable need a separate power cable when connected over eSATA. Power over eSATA: Another term for eSATAp, Power over eSATA refers to the ability of the eSATAp connection to power compatible devices via the same port used for data transfer. In computing, eSATAp (also known as Power over eSATA, Power eSATA, eSATA-USB, eSATA/USB Combo, or eSATA USB Hybrid Port/EUHP) is a combination connection for external storage devices. Unlike eSATA devices that require external power, eSATAp devices can draw in power themselves. However, the power is for the USB part of the port, and traditional eSATA devices still need an external power source, even when they are connected to an eSATAp port.