description Apacer AC633 Overview
The Apacer AC633 is a portable external hard disk drive designed for carrying and backing up data. It connects to computers through a USB 3.1 Gen 1 interface, which is compatible with the commonly used USB 3.0 standard. The drive has a shock-resistant enclosure and a protective design intended to reduce damage from ordinary travel and handling. It was sold in multiple storage capacities, including models reaching 2 TB.
help Apacer AC633 FAQ
How rugged is the Apacer AC633 portable hard drive?
Apacer says the AC633 passed MIL-STD-810G 516.6 transit drop testing from about 1.22 meters. It also has an IP55 rating for dust protection and resistance to water spray when the USB cover is closed. ([Apacer AC633](https://www.apacer.com/en/product/personal-product/detail/personal_portableharddrive/ac633_military-grade_shockproof_portable_hard_drive))
Does the Apacer AC633 use USB 3.0 or USB 3.1?
The current product page calls the connection USB 3.2 Gen 1, which is the same 5Gbps generation commonly marketed as USB 3.0 or USB 3.1 Gen 1. Inside, the AC633 uses a 2.5-inch SATA hard disk and is powered from the USB port. ([Apacer AC633](https://www.apacer.com/en/product/personal-product/detail/personal_portableharddrive/ac633_military-grade_shockproof_portable_hard_drive))
What capacities and operating systems does the Apacer AC633 support?
Apacer lists 1TB and 2TB versions, with larger models available at 4TB and 5TB. The drive is listed for Windows, macOS, and Linux, with a three-year warranty. ([Apacer AC633 specifications](https://www.apacer.com/en/product/personal-product/detail/personal_portableharddrive/ac633_military-grade_shockproof_portablehard_drive))
What protects the hard disk inside the Apacer AC633?
The enclosure combines a rubber protective case with an internal suspension structure that reduces vibration and impact. Apacer also says the USB Type-A connector passed a 10,000-cycle plug and unplug test. ([Apacer AC633](https://www.apacer.com/en/product/personal-product/detail/personal_portableharddrive/ac633_military-grade_shockproof_portable_hard_drive))
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