cenmate 704RU 4-Bay RAID External Hard Drive Enclosure User Manual
Model: 704RU
1. Уводзіны
This manual provides detailed instructions for the installation, operation, and maintenance of your cenmate 704RU 4-Bay RAID External Hard Drive Enclosure. Please read this manual thoroughly before using the product to ensure proper functionality and data safety. This enclosure supports up to four 2.5-inch or 3.5-inch SATA HDDs/SSDs.
2. Змесціва ўпакоўкі
- cenmate 4-Bay RAID Enclosure (Model 704RU)
- Адаптар харчавання (пастаянны ток 12 В)
- Кабель USB-A да USB-C
- Кабель eSATA
- Screws for 2.5-inch drive installation
- Кіраўніцтва карыстальніка
3. Асаблівасці прадукту
- Supports four 2.5-inch or 3.5-inch SATA I/II/III HDDs/SSDs.
- Multiple RAID modes: Normal, RAID 0, RAID 1, RAID 3, RAID 5, RAID 10, Clone, Large, JBOD.
- High-speed data transfer via USB 3.0 (up to 5Gbps) and eSATA.
- Equipped with a cooling fan for optimal heat dissipation.
- Automatic sleep function after 30 minutes of inactivity to reduce power consumption and drive wear.
- Built-in multi-protection features: short-circuit, over-heating, over-current, and over-voltagэлектронная абарона.
- Сумяшчальны з аперацыйнымі сістэмамі Windows, macOS і Linux.
4. Інфармацыя па бяспецы
- Ensure the power adapter is correctly connected to a suitable power source.
- Не падвяргайце прыладу ўздзеянню вады або празмернай вільготнасці.
- Пазбягайце падзення або моцных удараў корпуса.
- Do not open the enclosure or attempt repairs yourself. Contact support if service is required.
- Always back up important data before performing any RAID configuration changes, as data loss may occur.
5. Устаноўка абсталявання
5.1 Устаноўка жорсткіх дыскаў
- Gently pull out the drive trays from the enclosure.
- For 3.5-inch HDDs, align the drive with the tray and secure it using the provided screws (if necessary, some trays are screwless).
- For 2.5-inch HDDs/SSDs, place the drive into the tray and secure it with the smaller screws provided.
- Slide the loaded drive trays back into the enclosure until they click into place.

Figure 1: Installation of 2.5-inch and 3.5-inch SATA HDDs and SSDs into the cenmate 4-bay enclosure.
5.2 Падключэнне да кампутара
- Connect the power adapter to the enclosure's DC 12V input port and then to a power outlet.
- Connect the enclosure to your computer using either the USB-A to USB-C cable or the eSATA cable. Ensure the connection is secure.
- Power on the enclosure using the power switch.

Figure 2: DC 12V power connection for the enclosure.
6. Канфігурацыя RAID
The cenmate 704RU enclosure supports various RAID modes. Changing RAID modes will erase all data on the drives. Always back up your data before making any changes.
6.1 Разуменне рэжымаў RAID
| Рэжым RAID | Minimum Drives | Апісанне |
|---|---|---|
| Нармальны | 1 | Each drive operates independently. |
| RAID 0 | 2 | Striping. Data is split across multiple drives for increased performance. No redundancy. |
| RAID 1 | 2 | Mirroring. Data is duplicated across two drives for redundancy. Capacity is limited to the smallest drive. |
| RAID 3 | 3 | Striping with dedicated parity. Similar to RAID 0 but with one drive reserved for parity data. |
| RAID 5 | 3 | Striping with distributed parity. Data and parity information are distributed across all drives. Offers good performance and redundancy. |
| RAID 10 | 4 | Nested RAID (RAID 1+0). Combines mirroring and striping for high performance and redundancy. Requires four drives. |
| Клон | 2 | Creates an exact copy of one drive onto another. |
| Вялікі | 2 | Concatenation (JBOD-like). Drives are combined sequentially to form one large volume. No redundancy. |

Малюнак 3: Закончанаview of RAID storage modes.
6.2 Setting RAID Levels
The RAID mode is set using DIP switches located on the back of the enclosure. Refer to the diagram below for specific switch configurations.
- Выключыце харчаванне the enclosure and disconnect it from the computer.
- Set the DIP switches to the desired RAID configuration according to the diagram.
- Націсніце і ўтрымлівайце Скінуць кнопку на працягу 5 секунд.
- Reconnect the power and turn on the enclosure. The new RAID mode will be applied.

Figure 4: DIP switch configurations for RAID levels.
7. Initializing and Formatting Drives
After installing new drives and configuring RAID, the drives must be initialized and formatted before use. This process is typically done through your operating system's Disk Management utility.
- Connect the enclosure to your computer and power it on.
- Open Disk Management: Right-click 'This PC' (or 'My Computer'), select 'Manage', then 'Disk Management'.
- Locate the new disk(s) (they may appear as 'Unknown' or 'Not Initialized').
- Right-click the disk and select 'Initialize Disk'. Choose MBR for disks 2TB or less, or GPT for disks larger than 2TB.
- After initialization, right-click the unallocated space and select 'New Simple Volume' to create and format a partition. Follow the wizard to assign a drive letter and format with your preferred file system (e.g., NTFS for Windows).
8. Аперацыя
8.1 Перадача дадзеных
The enclosure supports USB 3.0 (5Gbps) and eSATA for high-speed data transfer. Connect the appropriate cable to your computer for optimal performance.

Figure 5: High-speed data transfer via USB 3.0/USB-C or eSATA.
8.2 Функцыя аўтаматычнага сну
The enclosure features an automatic sleep mode. If there is no data activity for 30 minutes, the drives will enter sleep mode to conserve power and extend drive lifespan. Activity will automatically wake the drives.

Figure 6: Automatic sleep function after 30 minutes of inactivity.
8.3 Святлодыёдныя індыкатары
The front panel features LED indicators for each drive bay, providing status information:
- Сіні: Always on, indicates standby mode or power on.
- Чырвоны: Flashing, indicates data reading or writing activity.
- фіялетавы: Паказвае на праблему або памылку жорсткага дыска.

Figure 7: LED indicator status meanings.
9. Тэхнічнае абслугоўванне
9.1 Сістэма астуджэння
The enclosure includes an integrated cooling fan to maintain optimal operating temperatures for your hard drives, preventing overheating and ensuring stable performance.

Figure 8: Internal cooling fan for heat dissipation.
9.2 Anti-skid Pads
The enclosure is equipped with silicone anti-skid pads on the bottom to provide stability and protect surfaces from scratches.

Figure 9: Silicone anti-skid pads for stability.
10. Выпраўленне непаладак
This section addresses common issues you might encounter with your cenmate 4-Bay RAID Enclosure.
Пытанне 1: Чаму пасля падключэння новага жорсткага дыска я не магу яго знайсці або ўбачыць літару дыска?
A1: New hard drives must be initialized and formatted before the system can recognize and use them. Refer to Section 7 for detailed steps on initializing and formatting drives in Disk Management.

Figure 10: Troubleshooting steps for drive recognition and RAW format.
Пытанне 2: Жорсткі дыск адлюстроўваецца ў фармаце RAW у раздзеле «Кіраванне дыскамі» з-за няправільнага распакавання або адключэння харчавання. Што рабіць?
A2: You can attempt recovery using the chkdsk command. Open Command Prompt as an administrator and input chkdsk I: /f (replace 'I' with the actual disc letter of the RAW drive). After scanning and repair, reboot your computer.
Пытанне 3: Жорсткі дыск дынамічна несапраўдны ў кіраванні дыскамі, бо раней ён быў выдалены са старога кампутара.
A3: This is a system-related issue. Reinstall the hard drive into its original computer motherboard, back up the data, and then convert it to a basic disk. If the old computer is unavailable, you may need dynamic disk conversion software.

Figure 11: Troubleshooting steps for dynamic invalid drives, missing disc letters, and disconnections.
Q4: Hard drive shows up but has no disc letter?
A4: In Disk Management, right-click on the Disk Partition section and select 'Change Drive Letter and Paths...' to add a drive letter for use.
Q5: The enclosure automatically disconnects during transmission and then reconnects itself after a while?
A5: This could indicate issues with the USB interface on your computer, the USB cable, computer USB drivers, the hard drive itself, or the hard drive enclosure. Systematically check each component. If the problem persists, contact technical support.
11. Тэхнічныя характарыстыкі
| Асаблівасць | Спецыфікацыя |
|---|---|
| Нумар мадэлі | 704RU |
| Марка | сужыцель |
| Падтрымліваюцца дыскі | 2.5-цалевы / 3.5-цалевы жорсткі дыск/цвёрдацельны назапашвальнік SATA I/II/III |
| Колькасць адсекаў для | 4 |
| Максімальная ёмістасць на дыск | Up to 20TB (Total 80TB) |
| Рэжымы RAID | Normal, RAID 0, RAID 1, RAID 3, RAID 5, RAID 10, Clone, Large, JBOD |
| Абсталяванне інтэрфейсу | USB Type-C (USB 3.0), eSATA |
| Хуткасць перадачы даных | Up to 5 Gigabits Per Second (USB 3.0) |
| Сумяшчальныя прылады | Desktop, Personal Computer |
| Сумяшчальная АС | Windows, macOS, Linux |
| Матэрыял | Алюміній |
| Памеры прадукту | 7 х 5 х 7 цалі |
| Вага прадмета | 7.37 фунта |
| Электразабеспячэнне | 12 В пастаяннага току |

Figure 12: Wide compatibility with various drive types and operating systems.
12. Гарантыя і падтрымка
cenmate products typically come with a one-year warranty. For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact cenmate customer support. The manufacturer aims to provide 24/7 quick reply and lifetime product quality support.
For support, please refer to the contact information provided with your product packaging or visit the official cenmate webсайт.





