TerraMaster U4-423 4-Bay 20tb NAS - Network Attached Storage Device 2x10tb Seagate EXOS X18 HDD Drives Installed

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ASSEMBLED AND TESTED PRIOR TO SHIPMENT Click Here for Information about the Assembly and Testing Process
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TerraMaster Burn-In Tested Hard Drive Storage Array Models and Configurations
 		TerraMaster U4-423Click Here To See More Information and Specifications for the TerraMaster U4-423.This Will Open a New Tab/Window In Your Browser
20tb - 20000gb - 2 x 10000gb 3.5" Seagate HDD Drives Installed
 
WANT MORE STORAGE CAPACITY?
WANT LESS STORAGE CAPACITY?
WANT A DIFFERENT INSTALLED DRIVE?

CLICK HERE FOR 30tbClick Here To View the TerraMaster U4-423 in a 30tb 3x10000gb Configuration with Similar Installed Installed Drives.
CLICK HERE FOR 18tbClick Here To View the TerraMaster U4-423 in a 18tb 3x6000gb Configuration with Similar Installed Drives.
VIEW ALL CONFIGURATIONSClick Here To View All Available TerraMaster U4-423 Fully Assembled and Tested Populated Configurations that Include Installed Drives.

 
SEE OTHER MAKES and MODELS
 
ALSO SEE F4-223Click Here To See the TerraMaster F4-223 AND F4-424Click Here To See the TerraMaster F4-424 OR OTHER TerraMaster MODELSClick Here To See All TerraMaster Models and Configurations

 

 
TerraMaster U4-423 20tb 4-Bay RackMount Multimedia / Power User / Business NAS - Network Attached Storage Device 2x10tb Seagate EXOS X18 ST10000NM018G 3.5 7200rpm SATA 6Gb/s HDD ENTERPRISE Class Drives Installed - Burn-In Tested - FREE RAM UPGRADE U4-423
TerraMaster U4-423 4-Bay NAS - Network Attached Storage Device Burn-In Tested Configurations - FREE RAM UPGRADETerraMaster U4-423 4-Bay NAS - Network Attached Storage Device Burn-In Tested Configurations - FREE RAM UPGRADETerraMaster U4-423 4-Bay NAS - Network Attached Storage Device Burn-In Tested Configurations - FREE RAM UPGRADETerraMaster U4-423 4-Bay NAS - Network Attached Storage Device Burn-In Tested Configurations - FREE RAM UPGRADE
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Device TypeThis is the type of device - (N)etwork (A)ttached (S)torage, (D)irect (A)ttached (S)torage, (N)etwork (V)ideo (R)ecorder, or Expansion Enclosure. NAS - Network Attached Storage Device
Environment Multimedia / Power User / Business
Form Factor RackMount
Number of Drive Bays 4 Bays
Supported Drive Types 3.5" SATA-HDD 2.5" SATA-SSD
Max Internal Storage Capacity 120tb
Device CPU Processor Intel Celeron 4-Core 2Ghz Burst To 2.9Ghz
Device RAM Memory FREE Total 8gb RAM Installed
    4gb RAM Standard - Upgrades Up To 32gb Are Also Available
2.5 Gigabit Ethernet Ports 2
USB 3.2 Gen-2 10Gbps Type-A Ports 2    Other Interface Options Are Also Available
HDMI Ports 1
TerraMaster WarrantyThis device is fully covered under warranty by TerraMaster.CLICK FOR MORE INFORMATION 2 YearsThis device is fully covered under warranty for 2 years by TerraMaster.CLICK FOR MORE INFORMATION
 
CLICK HERE FOR MORE INFORMATION ABOUT THE TerraMaster U4-423Click Here For More Information and Specifications about the TerraMaster U4-423.This Will Open a New Tab/Window In Your Browser
 
ASSEMBLED CONFIGURATION SPECIFICATIONS

ALL POPULATED DEVICES ARE FULLY ASSEMBLED AND TESTED PRIOR TO SHIPMENT

 

Number of Installed Drives 2 DrivesInstalled Drive Form FactorPOPular3.5"
Each Installed Drive CapacityPOPular10tb - 10000gbInstalled Drive SpeedPOPular7200rpm
Total Populated Storage Capacity 20tb - 20000gbInstalled Drive Interface TypePOPularSATA 6Gb/s
Installed Drive Make and SeriesPOPularSeagate EXOS X18Installed Drive TechnologyPOPularHDD - Standard Mechanical Drive
Installed Drive Model ST10000NM018GInstalled Drive Cache Buffer 256mb Cache Buffer
Installed Drive Warranty 5 YearsInstalled Drive Class ENTERPRISE CLASS DRIVES
WANT MORE STORAGE CAPACITY?
WANT LESS STORAGE CAPACITY?
WANT A DIFFERENT INSTALLED DRIVE OR CONFIGURATION?

CLICK HERE FOR 30tbClick Here To View the TerraMaster U4-423 in a 30tb 3x10000gb Configuration with Similar Installed Drives.
CLICK HERE FOR 18tbClick Here To View the TerraMaster U4-423 in a 18tb 3x6000gb Configuration with Similar Installed Drives.
VIEW ALL CONFIGURATIONSClick Here To View All Available TerraMaster U4-423 Fully Assembled and Tested Populated Configurations that Include Installed Drives.

 
WOULD YOU PREFER A SIMILAR CONFIGURATION WITH WESTERN DIGITAL INSTALLED HARD DRIVES?
CLICK HEREClick Here To View the TerraMaster U4-423 in a 20tb 2x10000gb Configuration with Western Digital Installed Drives.
price $1487 terramaster u4-423 4-bay buy 20tb rackmount nas - network attached storage device 2x10000gb 2x10tb seagate exos x18 st10000nm018g 3.5 7200rpm sata 6gb/s hdd drives installed burn-in tested nas headquarters buy network attached hard drive storage array server device das new raid-5 free shipping usa black friday cyber monday week month christmas holiday sale u4111 u4212 u4423 nas headquarters buy network attached hard drive storage array server device das new raid-5 free shipping usa black friday cyber monday week month christmas holiday sale 12/14/2025 5:31:43 AM
------- BLACK FRIDAY - CYBER MONDAY - CHRISTMAS HOLIDAY SALE - HAPPENING NOW -------
FREE Total 8gb RAM Installed ($45 Value)
$1718
--- $1487 ---		CLICK HERE
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SPARE DRIVES and DRIVE TRAYS
Spare Seagate ST10000NM018G 10000gb Drive Included
+$353
Spare Seagate ST10000NM018G 10000gb Drive with Drive Tray Included
+$390