Areca ARC-4108T3 (Expansion Adapter)

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(Thunderbolt 3 to 12Gb/s SAS Host Adapter)


With dual 12Gb/s SAS SFF-8644 connectors and dual 40Gbps Thunderbolt 3 ports configurations, the ARC-4108T3 is an ideal solution to connect a high- performance RAID controller with JBOD enclosure for users looking to achieve the highest I/O and data throughput for 4K workflows.

ARC-4108T3 is equipped with dual Thunderbolt 3 ports for connecting to any Thunderbolt 3-enabled host, and offers an additional Thunderbolt 3 port for daisy-chaining other peripherals. The Thunderbolt daisy-chaining allows connection of up to six devices, so customers can connect ARC-4108T3 for massive amounts of video storage with a single Thunderbolt connection to their host computer. ARC-4108T3 can meet the demand of users when working with rich, ultra-high resolution media through Thunderbolt 3 interface.


Technical Specifications



Dual 12Gb/s SAS SFF-8644 connectors


External SAS cable support: Passive copper and


Active Optical


LSISAS 3008 12Gb/s SAS+SATA controller


Support for SAS tape devices and transport


layer retries (TLR) for error handling


Dual 40 Gbps Thunderbolt 3 ports with DisplayPort


and device daisy-chain support


External LEDs for link and access status for each




Supports Xsan and Quantum StorNext File System


Thunderbolt cable included


Thunderbolt 3 certified for Mac and PC


  Product Features
Form FactorMini Box
Host ConnectionDual 40Gbps Thunderbolt ports
External Connectivity2 x 12Gb/s SAS SFF-8644 connectors
OS Support

MacOS 10.12 or later,
Windows 8 or later

Enclosure ManagementThunderbolt Port
Cooling Fan1 * noiseless cooling fan
Operating Temperature0 ~ 35˚C
Operation Humidity5% ~ 95 %, Non-condensing
Power Supply/In/out65W / 100-240V AC
(W x H x D)
4.97 x 2.13 x 6.35 in
(150 x 64.4 x 191.7 mm)
(W/O Drives)
2.64 lbs / 1.2Kg