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Recently I got my hands on the Neutrino U3+ hard drive enclosure. It has a slim, compact compact design featuring a portable aluminum enclosure designed for 2.5″ SATA hard drives. The enclosure is super light, and has ports for both USB 3.0 and FW800 making it ideal for portable post production applications.





  • USB 3.0 SuperSpeed interface
  • USB 2.0 backwards compatible
  • FireWire 800 interface
  • Designed for 2.5″ drives up to 12.5mm
  • Large heatsink for passive cooling
  • Fanless






Model No. Neutrino U3+
Part No. SK2-BU3OS-AKT
  • CE
  • FCC
Case material
  • High quality aluminum for optimized heat dissipation
  • 2.5″ SATA-I or SATA-II hard drive (1.5Gb/s or 3.0Gb/s)
  • Capacity 20GB – 1TB
  • Height 9.5mm or 12.5mm
RAID mode N/A
  • 1x Mini USB 3.0 SuperSpeed port (backwards compatible with USB 2.0)
  • 2x 9-pin FireWire 800 ports
Data transfer
  • FireWire 800 (1394b) up to 800Mbps (100MB/s)
  • FireWire 400 (1394a) up to 400Mbps (50MB/s)
  • USB 3.0 up to 5Gbps (625MB/s)
  • USB 2.0 up to 480Mbps (60MB/s)
System requirements (PC)
  • FireWire 400/800: Windows XP/Vista/7
  • USB 2.0/3.0: Windows XP/Vista/7
  • Your hardware device must have the correct corresponding port (e.g. USB 3.0, USB 2.0 or PCI card)
System requirements (Mac)
  • FireWire 400/800: Mac OS 10.2 or above
  • USB 3.0: Mac OS 10.8 or above
  • USB 2.0: Mac OS 10.2 or above
  • Your hardware device must have the correct corresponding port (e.g. USB 3.0, USB 2.0 or PCI card)
System environment
  • Operating Temperature: 5°C ~ 40°C
  • Operating Humidity: 20%RH ~ 80%RH
  • Storage Temperature: -20°C ~ 70°C
  • Storage Humidity: 10%RH ~ 90%RH
Power supply
  • Bus Power 5V/900mA (host computer has to provide sufficient USB bus power)
  • Power supply (DC +5.2V/2A)
Fan noise level N/A
Dimensions (LxWxH)
  • 4.9 inches x 3.1 inches x 0.9 inches
  • 12.5cm x 7.8cm x 2.4cm
Package contents
  • Neutrino enclosure (HDD not included)
  • USB 3.0 cable
  • FireWire 800 cable
  • Power adapter
  • User manual
  • Retail Box Size: 8.9 x 6.2 x 1.6 in. (22.7 x 15.7 x 4 cm)
  • Carton Size (20pcs per carton): 17.7 x 13.1 x 10.2 in. (45 x 33.4 x 26 cm)




As I have mentioned in the past in other reviews,  USB 3.0 delivers up to 10 times the speed of the older USB 2, plus , it is still backwards compatible.  Thus making it it a great choice for transferring and working with large file sizes, and various footage. This is great for when I am on my PC, however my Macbook Pro does not have USB 3.0, but Akitio have me covered their as well with 2 FW800 ports.  This is great as it allows me to jump form PC to Mac applications at any time.



The enclosure is very quiet as it does not have an integrated fan  and it remained relatively cool. However after a few hours the enclosure did start feel warm to the touch.  The Neutrino U3+ enclosure feels very tough as it is built from Aluminum, and all the ports are snuggly fit.  The on / off switch does seem to require a finger nail to slide it, as it is a little small.

The  Akitio Neutrino U3+ enclosure is a great professional enclosure for the needs of Journalists or anyone who is on always on the go. If you are looking for something small and portable this may be the enclosure for you.  Just remember hard drives are not included so you will have to supply one of your own.

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