NAS storage capacity expansion
Plug and Play Online Extensions
Safety holder to secure the USB cable connection
Intelligent power helps save energy
Smart temperature control for stable operation
Supports MyArchive cold backup technology
Compatible with high-capacity hard disks up to 10TB
Plug and play nothing more
AS6004U with USB 3.0 cable, just docking any one ASUSTOR NAS to complete the hardware expansion! ASUSTOR NAS by model * up to 3 AS6004U, to meet the large-capacity storage needs of business users.

* Expandable to three NAS series: AS31 / 32/50/51/61/62/63/64/70 Other series can be expanded to two
* Please connect with NAS USB 3.0 port
* Please use the official provided USB 3.0 connection Line
* If 70 Series USB3.0 is already full of 12 hard drives, the other usb ports will not be available.
* The AS7012R is plugged in with three USB expansion boxes (12 hard drives) and e-SATA can only use one
Lock the hard disk to keep it safe
In order to avoid accidentally hit the tray button so that the handle pop-up caused by accident, we added a new hard disk tray security lock. A type of lock design, so you do not need special tools can also switch. At the same time, this new tray is suitable for all Huayun NAS models and provides extra layer of security for applications that often require hard disk swapping (such as MyArchive).
Intelligent fan temperature control
When the system is in high load operation, the internal temperature of the system will increase accordingly. The AS6004U uses a fan with a wide speed range and temperature control function, and a smart speed control mechanism. When high load, the fan can automatically increase speed to enhance convection and heat dissipation. System to maintain a reasonable working temperature, to provide a stable and efficient service.
* Temperature varies with the number of hard disks loaded and the brand
SPECIFICATIONS
Hardware specification
Extension: USB 3.0 (USB3.1 Gen-1) Type B
HDD: HDD 2.5 "/ 3.5” SATA II / III or SSD x4
Maximum internal gross capacity: 40 TB (10 TB HDD X 4, Capacity may vary by type RAID)
Maximum Single Volume Size: 16TB
Interchangeable drives
Fan: 120mm x1
Power supply unit / adapter: 90W x1
Input voltage: 100V to 240V AC
Certification: FCC, CE, VCCI, BSMI, C-TICK
Working
Power consumption:
In operation: 23.6 W
Hibernation: 9.7 W
Sleep Mode: 0.35 W
Operating temperature: 0 ° C ~ 40 ° C (32 ° F ~ 104 ° F)
Humidity: 5% to 95% RH
Operating system
ADM 3.0 and higheR
File system
Internal drive: EXT4
Storage management
Multiple volume support with spare discs
Volume Type: Single Disk, JBOD, RAID 0, RAID 1,
RAID 5, RAID 6, RAID 10
Support Online RAID Level Migration
MyArchive
Immediate access to files after hard disk connection
Send or receive terabytes of data via the on-board SATA interface
Up to N-1 slot reserved for MyArchive dock
Dimensions and weight
Dimensions: 185.5 (H) x 170 (W) x 230 (D) mm
Weight: 2.7 kg / 5.95 lbs