Areca ARC-8050T2 or ARC-5028T2 ThunderBolt connected RAID storage

The fastest desktop RAID storage

The Areca ARC-8050T2 is the most complete 6Gb/s SAS 8-bay Thunderbol 2t box with RAID control capabilities solution for both PC and Mac. Thunderbolt host interface make ARC-8050T2 RAID box well suited for SOHO group professional who work at home and or in the office.

The ARC-5028T2 is a 6-bay version of this Thunderbolt RAID with performance around 800MB/s transfers and a capacity up to 36TB (RAID 0) or 30TB (RAID 5).


  • Connection via Thuderbolt2 (2 ports)
  • RAID level 0, 1, 1E, 3, 5, 6, 10, 30, 50, 60, Single Disk or JBOD
  • Support global hot spare and local hot spare
  • Automatic drive insertion / removal detection and rebuilding
  • Capacity up to 42TB (RAID 5) or 48TB (RAID 0) in 8 bay unit

Promise Pegasus2 R4, R6 & R8 ThunderBolt 2 connected RAID storage

The fastest desktop RAID storage

The Promise Pegasus2 R4, R6 & R8 are the First 4, 6 and 8-bay High Performance Hardware RAID Solutions designed to unleash the raw power of Thunderbolt 2 technology. Thunderbolt 2 technology is a new, high-speed, dual-protocol I/O technology designed for performance, simplicity, and flexibility. This high-speed I/O technology is capable of delivering a blistering two channels of 20Gb/s (2.5GB/s) per port of performance.


  • Supports up to 4, 6 or 8 SATA HDDs
  • 2 x Thunderbolt 2 technology Ports at 20 Gb/s (2.5GB/s)
  • Supports RAID 0, 1, 5, 6, 10
  • Providing over 800MB/s (Pegasus R6)/ 500MB/s (Pegasus R4)

Download PDF about Pegasus2 Thunderbolt 2 RAID units (3.5MB)

Stardom SR4 – 4 bay desktop RAID storage

The SOHORAID SR4-WBS3 is a four drive storage system with JBOD / RAID 5 / RAID 0 storage option for storing contents in large scales. Industrially designed with aluminum exterior that’s built tough and durable for hard drive protection of the highest grade.


  • Connection via FireWire 800, USB3.0 or eSATA
  • JBOD or RAID level 0 or 5
  • Support for 4TB drives
  • Capacity up to 12TB (RAID 5) or 16TB (RAID 0)
  • Low noise fan
  • Height: 166 mm Width: 124 mm Depth: 210 mm Weight: 4.6kg

Stardom ST4-TB 4Bay RAID 0 System

Thunderbolt 2 technology in ST4-TB is phenomenally fast. The two Thunderbolt 2 ports on ST4-TB features dual 20-Gbps channels for data transfer and that’s up to four times faster than USB 3. But beyond speed, Thunderbolt gives you unprecedented expansion capabilities. You can daisy-chain as many as six Thunderbolt devices to a single port. And since Thunderbolt is based on Display Port technology, Mini Display Port devices like Apple LED Cinema Display can plugs right in, too.

The ST4-TB can be used in RAID 0 with high performance, but no redundancy. Or it can be used to just show 4 drives on your desktop.


  • Current capacities up to 32TB of striped (RAID 0) storage
  • Supports current SATA III HDDs
  • Connects via a ThunderBolt 2 (2 ports)
  • Removable tray design – the ST4 is modular designed for effortless removal and install of drives
  • No software installation required
  • Quiet, low fan noise
  • Dimensions: (WxHxD) 166 x 124 x 248mm : 3.4kg

RAID Storage

In photography, imaging or design, our data is one of our most precious assets.
The thought of losing a current job or hundreds of hours work or thousands of personal photos is enough to make anyone grab for a bucket!

RAID is an acronym for Redundant Array of Independent Disks. With RAID enabled on a storage system you can connect two or more drives in the system so that they act like one big fast drive or set them up so that one drive in the system is used to automatically and instantaneously duplicate (or mirror) your data for real-time backup. Now, the exact speed and reliability you’ll achieve from RAID depends on the type of RAID you’re using.

RAID systems come in many various sizes and types. The variable that change are :

  • size (how many drives can be used)
  • interface (ThunderBolt™, FireWire, USB, eSATA, Fibre Channel, SCSI, Ethernet, iSCSI, SAS and more)
  • other redundancy (support for multiple power supplies and RAID controllers)

Below we talk a little about RAID storage systems mainly in relation to desktop style models that connect directly to your Mac or PC.

RAID is NOT backup!

It’s important to understand that RAID is a measure of protecting against hardware failure…. it is not a backup! RAID does not protect against the following failures/issues :

  • Accidental deletion of files
  • File corruption
  • Accidental breakage (that cup of coffee or dropping it off a desk)
  • Catastropic damage (fire!)
  • Theft (if they want to get in, they will)

In saying that RAID can be a great way to protect against that all too regular hard drive failure (except RAID 0 – read more below).

Advantages of RAID

There are three reasons you might want a RAID system of drives.

  • You need tons of storage space and you need it to be fast. (RAID 0)
  • You want to instantaneously and automatically create 2 copies your data on 2 different drives. (RAID 1)
  • You want both. (RAID 5)

Which RAID mode should I use?

1. RAID 0 – Speed

RAID 0 is taking any number of disks and striping data across all of them. This will greatly increase speeds, as you’re reading and writing from multiple disks at a time. An individual file can then use the speed and capacity of all the drives of the array. The downside to RAID 0 though is that it is NOT redundant, the loss of any individual disk will cause complete data loss.

Pros :

  • Very Fast storage performance
  • High capacities (combining capacity of multiple drives together)

Cons :

  • No tolerance for drive failure (all data would be lost if one drive fails)

Good for/as :

  • Situations where non-critical but high speed storage is required
  • Backup devices using Time Machine
  • High speed Video data storage
  • PhotoShop scratch disks

2. RAID 1 – Data protection

RAID 1 is also known as “mirroring” and is generally used with a pair of hard drives. The point of RAID 1 is primarily for redundancy, as you can completely lose a drive, but still stay up and running off the additional drive. You can then rebuild the array to a new drive off of the other drive with little to no downtime. RAID 1 also gives you the additional benefit of increased read performance as data can be read off any of the drives in the array. The downsides are that you will have slightly higher write latency, since the data needs to be written to all the drives in the array, and you’ll only have the available capacity of a single drive.

Pros :

  • Will protect against a single drive failure

Cons :

  • Capacity is limited by drive size

Good for :

  • Storage of important information
  • Your System/Application drive (to minimise downtime in the case of hard drive failure)
  • Small Servers for data storage

3. RAID 5 – Data protection and speed

RAID 5 combines the concepts of RAID 0 and RAID 1.

RAID 5 requires the use of at least 3 drives and will take the idea of RAID 0, striping the data across multiple drives to increase performance, but also adds the aspect of redundancy by distributing parity information across the disks.

Pros :

  • Will protect against 1 or 2 drive failures (depending on configuration)
  • Fast storage performance

Cons :

  • Some disks are not used for capacity (i.e. used for parity or hot spare in case of failure)

Good for :

  • Storage of important information
  • Small and Large Servers for data storage
  • When large amounts of storage are required
  • High speed Video data storage