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Promise Vess A3120 Series

Optimized for Video Surveillance

PROMISE proprietary SMARTBOOST™ Technology provides the most stable and high performance storage solution for your system. Promise SMARTBOOST™ Technology significantly improves performance that is otherwise limited by storage equipment bottlenecks. SMARTBOOST™ Technology provides the best stability and performance with the best C/P ratio.

Storage Appliances + Client Viewer provides Wider Applications

PROMISE Vess A3120 is a Storage Appliance for SMB/small installation video surveillance. It includes a Client Viewer for applications that require 24/7 monitoring. It is certified for several VMS for a complete surveillance system solution, using varied software features across multiple VMS.

Built-In GPU for better IVA Performance

Vess A3120 speeds up the graphic card performance and other processing using a built-in GPU, Intel Media SDK and thoroughly tested Graphic card implementation. Intelligent Video Analytics (IVA) has placed increased performance demands on surveillance systems; Vess A3120 handles basic recording AND better performing IVA tasks simultaneously.

4K Resolution Streaming Supported

4K camera support is an essential feature for areas that require high resolution camera monitoring. The Vess A3120 features 4K camera streaming for local display to provide high definition imaging of crucial areas.

Reduce the complexity of Maintenance by OPAS

One Plug Auto Service (OPAS) is a unique feature of Promise Vess App solutions that provides user convenience, reduces complexity for maintenance, and stream- lines technical support. OPAS enables users to collect all the necessary logs and data used by the Promise support team to analyze the status of Vess A-Series Storage appliances.


  • Optimized for Surveillance

Storage appliance optimized for IP video surveillance.

  • Small Installation & SMB

Ideal for less than 64ch full-HD IP cameras, perfect for banking, retail, prison, hotel, and more.

  • Easy to Administer & Maintain

Hot swappable drive bays, and One Plug Auto Service (OPAS) ensure Vess is easy to administer and maintain.


Camera Range
Form Factor
1U, 19″ Rackmount
Number Of Drives
4 Drives (3.5″)
Drive Type
6Gbs SATA @ 3.5”
System Processor
Intel® Core™ i3-7101E
System Memory
4GBx2 Default (Max 32GB)
2x Gigabit Ethernet / 1xIPMI
Internal Storage (M.2)
Storage Expansion
Optional Vess SAS and iSCSI Storage
Max. # of HDDs Supported
Up to 112 drives through iSCSI/SAS JBOD expansion
USB Ports
5x USB 3.0, 2x USB 2.0
PCI Express Ports
1×8-lane Gen3
1x VGA, 1x HDMI, 1x Display Port
Serial Interfaces
1x Serial Port
Audio & Microphone
3x 3.5mm Audio Jack and SPDIF
RAID Levels
0, 1, 1E, 3, 5, 6, 10, Any combination can exist at the same time
Hot Spares
Multiple global or dedicated hot-spare drives with revertible option
Max LUNs per system/array
Supported OS (64-bit)
Windows 10
Management Tools/Interface
Graphical UI/SNMP via Ethernet, CLI/CLU via Ethernet or Graphics, OPAS Service via USB, SDK or API for Integration
Appliance Mode
Surveillance Optimization @ Arrays in Normal and Degrade
Event Notification
Email, SNMP, Buzzer, LEDs
AC Input
100 ~ 240 VAC, 47 ~ 63Hz
Current (Maximum)
Power Supply
350W Single ATX
Temperature Range
5° ~ 40°C (-40° ~ 60°C non-operational)
44.2 x 446.4 x 398 mm
System W/O HDD: 6.48 kg 
System W/ HDD: 9.16 kg
Safety and EMI Certification
CE, FCC, VCCI, RCM,(EMI Class A), cULus
3 year limited warranty
Optional Accessories
Sliding Rail, 4/8/16 GB DDR Memory
¹ The ideal camera ranges were output of fully populated enclosure by pure recording and 8GB memory under 30FPS, H.264, 5Mbps Bitrate and 1080P resolution *The final spec may vary without further notice, please check with Promise website for the latest information