cenmate 704RU 4-Bay RAID External Hard Drive Enclosure User Manual
Model: 704RU
1. Увод
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. Садржај пакета
- cenmate 4-Bay RAID Enclosure (Model 704RU)
- Адаптер за напајање (ДЦ 12В)
- УСБ-А на УСБ-Ц кабл
- eSATA Cable
- Screws for 2.5-inch drive installation
- Упутство за употребу
3. Карактеристике производа
- 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-voltagе заштита.
- Компатибилан са оперативним системима Виндовс, мацОС и Линук.
4. Безбедносне информације
- Ensure the power adapter is correctly connected to a suitable power source.
- Не излажите уређај води или прекомерној влажности.
- Avoid dropping or subjecting the enclosure to strong impacts.
- 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. Инсталација хардвера
5.1 Инсталирање чврстих дискова
- 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 Повезивање са рачунаром
- 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. РАИД конфигурација
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 Understanding RAID Modes
| РАИД режим | Minimum Drives | Опис |
|---|---|---|
| Нормално | 1 | Each drive operates independently. |
| РАИД 0 | 2 | Striping. Data is split across multiple drives for increased performance. No redundancy. |
| РАИД 1 | 2 | Mirroring. Data is duplicated across two drives for redundancy. Capacity is limited to the smallest drive. |
| РАИД 3 | 3 | Striping with dedicated parity. Similar to RAID 0 but with one drive reserved for parity data. |
| РАИД 5 | 3 | Striping with distributed parity. Data and parity information are distributed across all drives. Offers good performance and redundancy. |
| РАИД 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. |
| Велики | 2 | Concatenation (JBOD-like). Drives are combined sequentially to form one large volume. No redundancy. |

Слика 3: Завршеноview 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.
- Искључите напајање the enclosure and disconnect it from the computer.
- Set the DIP switches to the desired RAID configuration according to the diagram.
- Притисните и држите Ресетуј дугме на 5 секунди.
- 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. Операција
8.1 Пренос података
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 Функција аутоматског спавања
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 ЛЕД индикатори
The front panel features LED indicators for each drive bay, providing status information:
- плава: Always on, indicates standby mode or power on.
- црвено: Flashing, indicates data reading or writing activity.
- љубичаста: Indicates a hard drive problem or error.

Figure 7: LED indicator status meanings.
9. Одржавање
9.1 Систем хлађења
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.
КСНУМКС. Решавање проблема
This section addresses common issues you might encounter with your cenmate 4-Bay RAID Enclosure.
Q1: After connecting a new hard drive, why can't I find it or see a disc letter?
А1: 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.
П2: Хард диск се приказује у RAW формату у Управљању дисковима због неправилног распакивања или нестанка струје. Шта да радим?
А2: 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.
Q3: The hard drive is dynamically invalid in Disk Management because it was previously removed from an old computer.
А3: 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?
А4: 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?
А5: 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. Спецификације
| Феатуре | Спецификација |
|---|---|
| Број модела | 704РУ |
| Бранд | cenmate |
| Подржани дискови | 2.5-inch / 3.5-inch SATA I/II/III HDD/SSD |
| Нумбер оф Баис | 4 |
| Max Capacity per Drive | Up to 20TB (Total 80TB) |
| РАИД режими | Normal, RAID 0, RAID 1, RAID 3, RAID 5, RAID 10, Clone, Large, JBOD |
| Хардверски интерфејс | USB Type-C (USB 3.0), eSATA |
| Брзина преноса података | Up to 5 Gigabits Per Second (USB 3.0) |
| Компатибилни уређаји | Desktop, Personal Computer |
| Компатибилан ОС | Виндовс, мацОС, Линук |
| Материјал | Алуминијум |
| Димензије производа | 7 к 5 к 7 инча |
| Тежина артикла | 7.37 фунти |
| Повер Суппли | ДЦ 12В |

Figure 12: Wide compatibility with various drive types and operating systems.
12. Гаранција и подршка
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 webсајту.





