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4U 24 bay Thunderboltâ„¢2 Storage and PCIe Expansion

NA381TB VideoThe Thunderbolt™2 NA381TB enclosure turns Mac mini into rackmount server, enabling power of Mac mini fully utilized by single Thunderbolt connection; it also transforms Mac mini into enterprise solution with over 100TB storage for data center, extra 3 PCIe slots for PCIe cards expansion, and is designed to fit for high-speed storage architecture. Any preferred RAID controller card can be selected to go into the NA381TB to make RAID available to storage. Professional PCIe cards such as video card, FC or 10GbE network card (sold separately) can even be added to NA381TB to work with Mac mini.

Simply, Mac mini becomes Enterprise Server
The Thunderbolt™2 NA381TB is equipped with two Thunderbolt™2 ports capable of daisy-chain up to 6 Thunderbolt™ devices and display, supporting I/O performance 20Gbps bi-directional. Once Mac mini with Thunderbolt 2 is released, the NA381TB can perform as fast as the Thunderbolt 2 throughput of the data rates 20Gbps. Built with rear easily removable host plate, the Mac mini can be integrated to NA381TB conveniently with existing Mac I/O accessible to users.

Excellent Cooling Design with Most Efficient Use of Space
Mac miniThe NA381TB rackmount enclosure is designed to have high efficiency airflow ventilation; even under the most mission-critical working environment, the Mac mini and each PCIe card are ensured to be staying at the coolest condition for running application smoothly. The Thunderbolt™ NA381TB also makes the most utilization of space for server; with the space-saving architecture, the Mac mini is transformed into enterprise server with PCIe expansion and mass storage upon no single space wasted.

  • Thunderbolt™2 interface with 20Gbps of throughput in both channels 
  • Solid 4U 24-bay rackmount chassis
  • Rear swappable integrated plate drawer for Mac mini
  • Supports twenty four (24) SAS/SATA (6G/3Gbps) HDD Trays
  • Supports up to 3 PCIe slots for RAID card, Fibre Channel HBA/10G networking card, and any standard PCIe add-on cards with Thunderbolt Aware's Driver.
  • Individual key lock on each HDD tray for physical security
  • Server-grade redundant power supply for zero-down-time
Host Interface           Thunderbolt™2 (Dual Port for Daisy Chain)
Data Transfer Rate           20Gbps Bi-directional
HDD Interface

SAS/SATA (6G/3Gbps)

No. of Disk(s)

Up to 24 (For 3.5" HDD & sold separately)

RAID Levels

Requires a RAID card with internal 24 port and Thunderbolt driver(RAID card sold separately)

PCIe Slot ExpansionTwo PCIe2.0 x8 and One PCIe2.0 x4
Thunderbolt Expansion

Up to Six Thunderbolt devices

LED Display for Enclosure

Fan normal - green; Fan failure - red
Temp. normal - green; Temp. over 50°C - red

LED Display for each Tray

White - Power On Indicator
Flash Blue - HDD Accessing Indicator
Red - HDD Failure Indicator

AlarmMutable buzzer beeping for fan failure or over temperature occurs
MaterialHeavy-duty cold-rolled steel Housing
Power Supply

650W Redundant PSU (Server-grade)
Input: 90-230 VAC/50-60 HZ
Output: +5V and +12V


559(D) x 482(W) x 176(H) mm
22 (D) x 19 (W) x 6.93 (H) inch


Five 90 x90 x25 mm

System SupportNew Mac Pro,Mac mini, Mac mini Server, MBP, iMac with a Thunderbolt port
O.S. SupportMac OS X 10.6.8/ 10.7.x/ 10.8.x/ 10.9.x/ 10.10.x/ 10.11.x
PCIe card Driver RequestThird-party PCIe card should support Mac OS with Thunderbolt aware's driver
PCIe card  Size Available

Card length within 305mm and full height PCIe card

Operating Temperature5 to 40°C  (41 to 104°F)
Storage Temperature-10 to 50°C  (14 to 122°F)
Relative Humidity20 to 80% (non-condensing)
Package Content

Enclosure x 1
HDD Tray x 24 (Installed)
Thunderbolt cable x 1 (2 meter)
Manual CD-ROM x1
Hard Disk Drive mounting screw x 96
Key for HDD tray x 2

Power Cord x 2


Brand Name


Host Support
Apple MacBook Pro   Apple• Mac Pro 2013, Mac mini, Mac mini Server, MBP, iMac
   with a Thunderbolt port (Mac OS X 10.6.8+)
RAID Card Support 
Areca   Areca

ARC-1882ix-24 (Driver)        ARC-1284ML-24 (Driver)
ARC-1883ix-24 (Driver)  

Audio Card Support 
 RME-Audio Card    RMEHDSPe MADI        HDSPe AIO
HDSPe AES          HDSPe RayDAT
 UAD-2 Duo/Turbobox    Universal AudioUAD-2 DUO         UAD-2 QUAD
  (version 6.3.1+)
Video Card Support 
 BlackMagic  BlackMagicDeckLink Studio   DeckLink Quad   Intensity Pro
DeckLink HD 3D   DeckLink 4K (version 9.5+) 
 Matrox  MatroxMojito MAX
 AJA  AJAKona 3G            Kona LHi       Kona LHe Plus
  (version 10.3+)
10G Networking Card 
 ATTO_Netstor ATTOFast Frame NS11   Fast Frame NS12
Fast Frame NS14   Fast Frame CS11
Fast Frame CS12   Fast Frame CS14
 Myricom10G-PCIE-8B-2C  10G-PCIE-8B-2S ?10G-PCIE-8B-C
10G-PCIE-8B-S    10G-PCIE2-8B2-2C
10G-PCIE2-8B2-2S  (version v1.3.1+)
 SmallTree   Small Tree

PETG1 series    • PETG2 series     • PETG4 series
(version v2.14+)

Ordering Information
 Model No.



4U 24 bay Thunderbolt to Combo SAS/SATA JBOD and PCIe Expansion Chassis, with redundant 650W Power Supply, One Thunderbolt 2 meter cable


Areca's ARC-1883ix-24, internal 24 port SAS/SATA RAID Adapter, Dual Core RAID-on-Chip 1.2GHz processor, Supports RAID level 0, 1, 10(1E), 3, 5, 6, 30, 50, 60, Single Disk or JBOD, with Thunderbolt aware driver
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