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IcyDock MB521SP-B flexiDOCK 2.5" SSD Dock Trayless Hot-Swap SATA/SAS Mobile Rack - Black

flexiDOCK brings the quality and ease-of-use of a professional solution to the consumer market. With support for 2.5" hard drives or SSDs ranging from 5mm 15mm height, the MB521SP-B fits almost any type of the 2.5 drives include 15mm height 5TB+ high capacity laptop drives and requires only a single external 3.5" drive bay. Our new tray-less design has no doors, allowing for drives to be switched out within seconds. This is an improvement to many traditional hard drive docking stations that leave the drive sticking out and looking cluttered. The easy to press ejection button offers rapid drive ejection in a smooth, quick action. The drive power switch allows drive to be turned on and off in an instant. The metal body with an air ventilating design keeps your drives at optimal temperature.

The flexiDOCK MB521SP-B is the perfect solution for anyone who needs quick access to data from high capacity laptop drives or high speed SSDs; Media professionals editing and moving large files, data recovery specialists constantly swapping drives, and IT technicians maintaining regular backups of critical data.

The World's First Professional Docking Made for 3.5" Bay

flexiDOCK brings the convenience of a HDD docking station, with the performance of a HDD mobile rack. The MB521SP-B turns your external 3.5 bay into a hot-swappable SSD / HDD dock to easily access all kind of 2.5 drives within the dock. flexiDOCK installs into your system in minutes with only a few screws, and is ready to operate. Once installed, the flexiDOCK MB521SP-B supports 1 x 2.5 SAS/SATA HDD/SSD drives ranging from 5mm to 15mm in height. It also supports SATA 6Gbps transfer speeds and hot-swap functionality, using your drives to their full extent has never been easier.

Different by Design

When working with multiple drives, constantly swapping between drive caddies / trays can slow your workflow to a crawl. Thats why weve taken trays and doors completely out of the equation with our new flexiDOCK MB521SP-B. Our new system allows drives to be inserted in seconds and sit flush with the computer's front panel, reducing clutter and protecting your drives from environmental hazards. When a drive is inserted into flexiDOCK, an eject button is revealed along with a LED drive activity light. To eject your drive, simply press the eject button back in and your drive will pop out. You can also turn off drives power anytime by switching the front accessible power slide switch.

Profession Specific

With the new door-less design that allows users to quickly and easily change out SSDs or drives. Video professionals and hobbyists use this feature to quickly edit their videos, when large projects call for multiple drives. Forensic customers benefit from the ability to easily access clients SSD or HDD within the forensic workstation. IT professionals and computer repair technicians utilize this feature to effortlessly read / write data from multiple drives. The flexiDOCK MB521SP-B is an affordable yet powerful tool that helps professionals do their jobs more time efficiently and effectively.

Built for Enterprise

Weve designed flexiDOCK to handle professional applications, while maintaining a consumer-friendly price point. The MB521SP-B is capable of holding up in the harshest environments, with the heavy duty metal casing throughout the entire device, it can be used in various enterprise systems including: image processing workstation, digital forensic workstation, as well as manufacturing conditions such as embedded control systems and factory automation systems. The full metal design also allows heat dissipation transfer from the hard drives or SSDs throughout the mobile rack. In addition, Multi-Flow Technology routes air flow effectively for excellent passive cooling through meticulously designed front, rear, top and bottom ventilation slots.

Safety Enhanced Drive Guiding Mechanism

Since 2.5 SSDs and hard drives come with different drive heights and dimension may vary from manufacturer to manufacturer, in order to protect your drives, we have designed a safety enhanced drive guiding mechanism that prevents accidental drive ejection. There are two drive guiding pecks on either side of the drive and a metal flap in the rear that adjusts automatically based on drive's height. Each guiding pecks clamp the drive tightly while the adjustable metal flap pushes the drive down, making a stable SATA connection. Ultimately, these features are designed to prevent unintended drive ejection that may result in possible data damage.

Optional Flex-Fit MB343SP for External 5.25" Bay

When using FlexiDOCK in an external 5.25" drive bay, Flex-Fit MB343SP can be used as an adapter for converting an external 5.25" drive bay into an external 3.5" drive bay.

Suggested Applications

Data backup, data cloning, audio &video editing, digital forensic, drive recovery or any applications where drive hot-swap is required.
Key Features
  • Supports docking 1 x 2.5 SAS/SATA HDD/SSD with SATA hot-swap functionality (5mm 15mm)
  • Fits any external 3.5 bay
  • Full metal chassis with industrial ABS plastic for full protection to the drive
  • Completely tray-less design and accepts bare drives without trays or holders
  • Drive door-less design for quick hot-swapping
  • Safety enhanced drive ejection button to prevent accidental drive ejection
  • Large individual drive eject button with cool blue drive activity LED
  • Flush drive insertion design fully protects drives from possible environmental damage
  • Front accessible drive power switch
  • Multi-Flow Technology - provides excellent passive cooling
  • Backed with 3-year manufacturer warranty
  • Ideal 2.5 SSD / HDD docking for system that requires easy hot-swap as mobile computers, data center rackmount computers and rackmount server systems, industrial automation control system, military computers and OEM / ODM systems


Short Product Description :
ICY DOCK flexiDOCK MB521SP-B 2.5 inch Hot-Swap SATA / SAS HDD / SSD Dock Trayless Mobile Rack Backplane Cage for External 3.5" Drive Bay
Product Name :
Model Number :
Color :
Support Drive Size :
2.5 inch SSD / HDD
Compatible Drive Type :
SATA / SAS (SAS host required / Single channel)
Number of Drives :
Max Drive Height :
Drive Bay :
1 x external 3.5" drive bay
Host Interface :
1 x SATA 7pin
Power Input :
1 x SATA 15pin
Transfer Rate :
Up to 6Gb/sec (Depending on hard drive speed)
Support HDD Capacity :
No Limitation
Drive Cooling :
Metal heat dispersion with passive cooling
RAID Function :
Structure / Material :
Metal with parital plastic
Support Hot-Swap :
Drive Security :
Product Dimension (L x W x H) :
128.5 x 101.6 x 25.4mm
Product Weight :
0.53 lbs(234g)
Shipping (Package) Weight :
0.63 lbs(278g)
RAID Status LED Indicator :
Drive Activity LED Indication :
Drive power: solid blue; HDD access: flashing blue
Package Contents :
1 - Device, 1 - user manual, 4 - screw
SATA Connector Insertion Rate :
Humidity :
5%~65% RH
Opertating Temperature :
0C to 60C (32F to 140F)
Storage Temperature :
-35C to 70C (-31F to 158F)
Compliance :

No additional files, specification sheets, guides or documentation found for product.

Warranty: 12 Month Return To Base

Full manufacturers warranty details are available at the manufacturers (Icydock) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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