StarTech.com
Utgått

Dual 3.5in USB 3.0 Hot Swap Trayless SATA Hard Drive Enclosure w/ Fan

Connect Two Removable SATA Hard Drives through a Single USB 3.0 Connection

Produkt ID: SAT3520U3R

  • Trayless design: 3.5in drives are not mounted to a tray or the enclosure chassis/frame
  • SuperSpeed USB 3.0 compliant host interface, which supports transfer rates up to 5 Gbps
  • RAID support: 0, 1, BIG (Concatenation), JBOD
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  • Backward compatible with USB 2.0 systems, out of the box
  • 55mm cooling fan
  • Lockable drive doors
  • Power and Activity LED indicators
  • Plug-and-Play and Hot-Swap compatible
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Överblick

The SAT3520U3R USB 3.0 to Dual 3.5-inch SATA Trayless Hard Drive Enclosure makes adding fast external storage easy, by turning any two 3.5-inch internal SATA hard drives into an external hard drive. Large capacity drives (tested with up to 4TB per bay) can be used to greatly enhance your computer's storage/backup capabilities.

The hard drive enclosure features a trayless system that eliminates having to mount and fasten the hard drive into the enclosure or tray, for quick and easy installation or removal.

Using the SuperSpeed USB 3.0 interface, which is up to 10 times faster than the previous USB 2.0, makes backing up and transferring large files faster than ever, while still being usable on older USB 2.0 systems. With built-in RAID capabilities (0, 1, BIG, JBOD), the two drives can be combined for speed, redundancy, capacity, or even left as separate drives, based on situation needs.

Fördelarna med StarTech.com

  • SuperSpeed USB 3.0 technology provides fast access for external storage, while still being backward compatible with USB 2.0
  • Quickly and easily install or remove hard drives from the enclosure with the innovative trayless design
  • Built-in support for RAID 0, 1, JBOD and Concatenation modes to suite most personal/business needs

Användning

Adding external storage that is easily transferable between different computer systems

Expand the storage capabilities of a small form factor/embedded system or laptop, with an external hard drive

Adding external storage capacity for video editing or photo editing stations, making it easier to work with very large file sizes

Creating additional backup/archive storage for IT professionals

Turning unused SATA hard drives into additional external data storage

Tekniska specifikationer

Information om garanti
Garanti 2 Years
Hårdvara
Antal enheter 2
Chipset-ID JMicron - JMS551
Enhetsinstallation Löstagbar
Enhetsstorlek 3.5in
Enhetstyp SATA
Fläkt(ar) Ja
Flaktar 1 - 55 mm
Gränssnitt USB 3.0
Prestanda
Inlänkningshastighet 15, 000 cycles
Maximal enhetskapacitet Currently tested with up to 4TB 5400 RPM hard drives per bay (8TB total)
RAID Ja
RAID-lägen som stöds BIG (Omfång eller sammanfogning)
JBOD - (Just a Bunch of Disks)
RAID 0 (stripade enheter)
RAID 1 (speglade enheter)
Temperaturlarm Nej
Typ och hastighet USB 3.0 - 5 Gbit/s
SATA II (3 Gbps)
UASP-stöd Nej
Kontakt(er)
Enhetskontakter 2 - SATA data- & ström-kombo (7+15-stifts) Honuttag
Värdkontakter 1 - USB Type-B (9-stifts) USB 3.0 Hona
Mjukvara
OS-kompatibilitet OS independent; No software or drivers required
Särskilda anmärkningar/krav
System- och kabelkrav Available USB port
Indikatorer
LED-indikatorer 2 - Activity (blue)
2 - Power (blue)
Ström
Inspänning 110V-240V AC
Power Source AC-adapter medföljer
Utspänning 12 DC
Utström 3A
Miljö
Drifttemperatur 5°C to 80°C (41°F to 176°F)
Förvaringstemperatur -40°C to 70°C (-40°F to 158°F)
Luftfuktighet 8% ~ 90% RH
Utseende
Färg Svart
Kabinettyp Aluminium och plast
Produktbredd 76 mm [3 in]
Produkthöjd 135 mm [5.3 in]
Produktlängd 210 mm [8.3 in]
Produktvikt 858 g [30.3 oz]
Förpackning
Förpackningsantal 1
Fraktvikt (förpackning) 1545 g [54.5 oz]
Vad det är i lådan
Ingår i paketet 1 - Hard Drive Enclosure
1 - USB 3.0 Cable
3 - Power Cord (NA/UK/EU)
1 - Universal Power Adapter
1 - Instruction Manual

Kompatibilitet

Se alla kompatibla operativsystem
OS independent; No software or drivers required

Certifikat

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Tillbehör

Produktsupport

Vanliga frågor

Before You Buy

To determine if your hard drive will work in this enclosure, on the product page, click the Technical Specifications tab, and do the following:

  • Make sure that the enclosure supports the storage size of your hard drive. If the storage size of your hard drive is larger than what the enclosure was tested with, the hard drive will likely still work with the enclosure.
  • Confirm that your hard drive uses the same interface type as the enclosure. For example, IDE, SATA, or M.2.
  • Make sure that the enclosure supports the physical size of your hard drive, such as 2.5 inches or 3.5 inches.
  • Make sure that the enclosure supports the height of your hard drive. For example, 9 mm or 15 mm.
  • Verify that the power consumption of your hard drive doesn’t exceed the power output of the enclosure. If you’re using multiple hard drives, make sure that the combined power consumption of all of the hard drives doesn’t exceed the power output of the enclosure.

Note: Not all StarTech.com devices support each of the RAID modes described below. For more information on the RAID modes that your device supports, refer to the manual or the StarTech.com product page.

Redundant Array of Independent Disks (RAID) is a virtual disk technology that combines multiple physical drives into one unit. RAID can create redundancy, improve performance, or do both.

RAID should not be considered a replacement for backing up your data. If critical data is going onto a RAID array, it should be backed up to another physical drive or logical set of drives.

The following are terms that are normally used in connection with RAID:

  • Striping: data is split between multiple disks.
  • Mirroring: data is mirrored between multiple disks.
  • Parity: also referred to as a checksum. Parity is a calculated value used to mathematically rebuild data.

Different RAID levels exist for different application requirements.

Refer to the following table for the list of RAID modes offered by some StarTech.com products:

RAID mode Description Operation Advantages Disadvantages Recovery
RAID 0 Striped disks Data is split evenly between two or more disks. Large size and the fastest speed. No redundancy. If one or more drives fails, this results in array failure.
RAID 1 Mirrored disks Two or more drives have identical data on them. A single drive failure will not result in data loss. Speed and size is limited by the slowest and smallest disk. Only one drive is needed for recovery.
RAID 3 Striped set with dedicated parity Data is split evenly between two or more disks, plus a dedicated drive for parity storage. High speeds for sequential read/write operations. Poor performance for multiple simultaneous instructions. A single drive failure will rebuild.
RAID 5 Striped disks with distributed parity Data is split evenly between three or more disks. Parity is split between disks. Large size, fast speed, and redundancy. The total array size is reduced by parity. A single drive failure will rebuild.
RAID 10 1+0; Striped set of Mirrored Subset Four or more drives are made into two mirrors that are striped. Larger size and higher speed than RAID-1, and more redundancy than RAID-0. No parity. Only one drive in a mirrored set can fail.
JBOD Just a Bunch Of Disks Any number of drives are accessed independently by the operating system. Software RAID modes can be used. Hardware RAID may have better performance. N/A
Big Spanning or Concatenation Data is written on one drive until it is full, and then the next drive(s) until it or they are full. Creates a very large and simple array.

No redundancy.

N/A
Clone RAID 1 + Spare

Two drives have identical data, plus one drive is used for rebuilding in case of a primary array failure.

Seamless operation when one drive fails in a RAID-1 array. Spare drive is not accessible to the user. Only one drive is needed for recovery.

 

Hur man

To confirm that the Mac OS detects your USB device, complete the following:

  1. Click the Apple icon.
  2. Click About This Mac.
  3. Click More Info or System Report.
  4. Under the appropriate heading, confirm that your USB device is listed and that there isn't an error. For example, a network card would be under Ethernet Cards.

You may need to refresh the System Information page after you plug in your device.  To do so, press Command R with the System Information page open.

Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Problemsökning

When you troubleshoot issues with a hard drive enclosure, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Cables
  • Hard drives
  • Hard drive enclosure

To test your setup components, try the following:

  • Use the cables, hard drives, and hard drive enclosure in another setup to see if the problem is with the components or the setup.
  • Use a different cable, hard drive, and hard drive enclosure in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test the hard drive and hard drive enclosure, it is recommended that you do the following:

  • To check Disk Management, press the Windows key + R, type diskmgmt.msc, and press Enter. Check to see if your hard drive is listed.
  • If the hard drive is listed with unallocated space, the hard drive needs to be reformatted. Right-click unallocated and click New Simple Volume. Follow the on-screen instructions to complete the reformatting.​

Note: Formatting a hard drive erases all of the data on it. Make sure that you back up all of your data before you reformat the hard drive.​

  • If the hard drive is listed as healthy but does not have a drive letter, for example, C:, right-click healthy and click Change Drive Letter and Paths. Click Add, assign a drive letter, and click OK.

Note: A formatted hard drive will not show up in Computer or My Computer until it has a drive letter assigned to it.

Note: Any data currently on the drives will be lost during this process. You need to back up all of your data before you set a RAID mode.

To set up a RAID mode, complete the following:

  1. Turn on the hard drive enclosure.
  2. Set the RAID switch to the RAID mode that you want to set.
  3. Press the RESET button.

In order to rebuild a RAID array, you need to replace a physical drive with an identical drive on the same RAID controller. Although standard RAID levels are generally agreed upon throughout the industry, the implementation varies between manufacturers. RAID arrays are typically not accessible when they are moved to another controller, and data may be unrecoverable if the drives are out of order or have been formatted or accessed by another RAID controller.

If a RAID controller has failed, you should get the exact same model of RAID controller.  

Note: If a drive or drives were damaged, it is possible that the RAID array may be permanently unrecoverable.

RAID should not be considered a replacement for backing up your data. If critical data is going onto a RAID array, you should back up the data on another physical drive or logical set of drives.

Rebuild a RAID array

With the following RAID modes, recovery is possible using the same StarTech.com product. Refer to the following table for the appropriate method to use to recover your RAID array.

RAID mode Max # of failed drives Procedure
RAID 1 Only one drive is needed for recovery.
  1. Determine which drive is operational by using the RAID management utility (if available) or test each drive individually on a different hard drive controller (for example, a hard drive docking station or SATA controller).

  2. Replace the failed drive with an identical hard drive.

The array will rebuild and is accessible during the rebuilding process.

RAID 3 Single drive failure will rebuild.
  1. Determine which drive is defective by using the RAID management utility (if available) or with diagnosis LEDs on the controller or enclosure.

  2. Replace with an identical hard drive.

Note: Do not change the order of the drives.

  1. The array may be accessible during the rebuild, but you should let the controller rebuild without interruption so that performance is not compromised.

RAID 5 Single drive failure will rebuild.
  1. Determine which drive is defective by using the RAID management utility (if available) or with diagnosis LEDs on the controller or enclosure.

  2. Replace with an identical hard drive.

Note: Do not change the order of the drives.

  1. The array may be accessible during the rebuild, but you should let the controller rebuild without interruption so that performance is not compromised.

RAID 10 Only one drive in a mirrored set can fail.
  1. Determine which drive is defective by using the RAID management utility (if available) or with diagnosis LEDs on the controller or enclosure.

  2. Replace with an identical hard drive.

Note: Do not change the order of the drives.

  1. The array may be accessible during the rebuild, but you should let the controller rebuild without interruption so that performance is not compromised.