Designed for Video Content Creators, eSATA at 3Gbps, Memory of 4TB

Need more information about this product? - We'll get back to you ASAP
You must enter a valid email address.
Email me when stock arrives
North Island
South Island

G-Technology's 4TB G-SPEED eS 4-BAY RAID Array with four 1TB Enterprise Drives is an economical, high-performance, high-storage solution designed for professional video content creators. The compact and whisper-quiet G-SPEED eS sports a 3Gbit eSATA interface great for transmitting the large amounts of data demanded by video files. It also features four 1TB hot- swappable Hitachi Ultrastar 7200 RPM SATA drives for the memory you need to store video and to speedily and easily access it for streaming.

Since an eSATA host adapter for connecting the unit to your computer is not included, you have two options for deciding on one. If you decide to use another company's port multiplier aware eSATA host adapter, you can configure the G-SPEED eS as only a software RAID or a JBOD. As your second option, if you use G-Technology's PCIe 4x RAID controller, you will have a much greater variety of RAID options. The controller allows you to configure your G-SPEED eS as a RAID 0,1,5,10 or JBOD. As such, you have more flexibility in choosing the right configuration for your work, whether you need more storage, extra reliability, simultaneous access to video files, or some ratio between the three. When used with this controller, it supports multi-stream SD, ProRes 422, and uncompressed HD workflows. For example, a single G-SPEED eS used with the G-Tech controller supports up to four simultaneous streams of ProRes422 HQ or one stream of uncompressed 1080/60i. Moreover, in terms of just storage capacity, one terabyte of memory holds up to 84 hours of HDV 1080i, 17 hours of DVCPRO HD 1080/60i, 13 Hours of 8 bit SD, 10 hours of ProRes 422HQ, 10 hours of 10 bit SD, and 2.25 hours of HD 1080/60i.

When used with G-Technology's controller, you can setup your RAID configurations and monitor your system via an easy-to-use, web-based graphic user interface. Accessed via any internet browser on your computer, this simple GUI can easily keep track of your RAID's performance and, in the event of a disk failure, have the G-SPEED eS alert you via email.

Along with this safety mechanism, the G-SPEED eS features locks for each drive, a sturdy aluminium casing, and two internal fans for preventing the hard drives from overheating. In addition, the G-SPEED, itself, will sound audible alarms in case a disc fails, the internal temperature nears 140°F, a fan stops, a fan spins too slowly to cool the system, or when the enclosure is improperly disconnected from the G-Tech PCIe RAID controller.

Beyond all these exceptional features, should you ever decide 1TB of memory isn't enough, you also have the option of scaling up in a few different ways. You can replace all of the drives in the G-SPEED enclosure with 2TB drives (because you can't mix and match them) for 8TB per enclosure. In this case, you can still use another company's host adapter or the G-Tech PCIe RAID controller. With the latter, you can also both upgrade your enclosure to 8TB and connect up to four G-SPEED eS enclosures at once. With another company's host adapter, you might be able to connect up to four, depending on what their card allows. If you do go for the maximum amount of scalable memory using at least the G-Tech controller, you can connect four enclosures of 8TB apiece for a total of 32TB of memory!

All told, the 4TB G-SPEED eS is an economical, high-storage, high-performance RAID hard-drive array designed with all the right features to keep you, the professional video content creator, busily at work!

Key Features

  • Whisper-quiet aluminium enclosure features four hot-swappable drives
  • With the G-Tech PCIe 4x RAID controller (not included), the G-SPEED eS supports multi-stream DV, HDV, DVCPRO HD, ProRes 422 & uncompressed SD playback in RAID 0 or RAID 5 mode and single-stream 8-bit, 1080/60i HD playback in RAID 0 or RAID 5 mode
  • Supports RAID 0,1,5,10, and JBOD with G-Tech PCIe 4x RAID controller (not included) or software RAID and JBOD with another company's port multiplier aware eSATA host adapter
  • Offers 4TB of storage capacity
  • Enclosure alone is scalable up to 8TB and with the G-Tech PCIe 4x RAID controller, up to four 8TB enclosures can be connected at once for 32TB of total storage capacity
  • Web-based configuration and management that's easy to use and setup with the G-Tech PCIe 4x RAID controller
  • Auto-rebuild and email notifications when using the enclosure with the G-Tech PCIe 4x RAID controller
  • Two "smart" cooling fans ensure reliable operation and data integrity
  • Unique industrial design and compact all aluminium enclosure


4TB / 4x   1TB
Array Type
Drive Speed
Up to 32MB per drive
Drive Types Supported
4x     SATA II
Sustained Data Transfer Rate
Not Specified by Manufacturer
Video Stream Playback
One G-Speed eS used w/ the G-Tech PCIe x4 RAID controller:

Multi-stream DV, HDV, DVCPRO HD, ProRes 422 & uncompressed SD playback in RAID 0 or RAID 5 mode and single-stream 8-bit, 1080/60i HD playback in RAID 0 or RAID 5 mode
Array Configuration
Type: RAID
Levels Supported: 0, 1, 5, 10, JBOD
Status Indicator
Via the web Graphical User Interface
Via audible alarm when disk drive failure occurs
Via red warning LED on front panel and audible alarm when system isn't cooling enough
Via audible alarm when G-Speed eS is removed from RAID controller without first being "unplugged" in the Array Maintenance menu in the web GUI
Input and Output Connectors
1x     3Gbit, eSATA
2x     "smart" cooling fans
4x    Disk Module Locks
Agency Certifications
Not Specified by Manufacturer
System Compatibility
For MAC:
Apple Mac Pro (Intel Mac) workstation
Mac OS X 10.4.x or higher
G-Tech PCIe RAID Controller or third party port multiplier aware eSATA host adapter

For PC:
PCIe equipped workstation
Microsoft Windows 2000/XP/2003/Vista
G-Tech PCIe RAID Controller or third party port multiplier aware eSATA host adapter

FOR RAID controller: Mac Pro (Intel processor) or PC with available PCIe x4 slot:
Windows Vista/XP/2000Windows 2000, XP, Vista and greater than 2TB support in Windows 32bit environments
Mac OS X 10.3 +
Drivers included w/ installation software
Power Requirements
AC: 100-240VAC, 50/60Hz
Environmental Requirements
50-95°F / 10-35°C
Dimensions (WxHxD)
8.25 x 4.9 x 6.5" / 210 x 124 x 166 mm
12.5 lb / 5.7 kg
G-Technology 4TB G-SPEED eS 4-BAY RAID Array w/ 4x 1TB Enterprise Drives
RM Product #:
4 TB