Can you replace rear fan with quiet aftermarket?

I went as far as to buy a 80 mm to 120 mm adapter and stick an ultra quiet 120 mm fan. The result is exactly what I wanted -- quiet running, more air drawn over the drives, and cooler drives.

Is trayless or ones with trays better for minimizing rattles and vibration?

I can't answer the vibration or rattle comparison, but I have had this unit since Oct. 2014, and have had no issues with the unit or hard drives going bad? I am using in a home server running 24/7. I bought it in case I needed to swap drives, but i haven't had to yet...

Does this work with 6tb western digital red hard drives?

works with any SATA or SAS hard drive (obviously you must connect the drive bay to a Sata or Sas controller). We use western digital RE drives and one thing you need to be aware, once you insert the drive, you need to open the door slightly and push drive firmly unto the backplane with your thumb, then reclose the door. This ensures a square and fully inserted drive onto the backplane.

Do i need a separate power supply cable?

Yes, you can run one cable from the PSU peripheral to the cage. But be ware, do not daisy chain more than one cage (if you buy more than one). Each drive can consume up to 10-12 Watts depending on your drive, and say another 2 watts for the fan itself, and you are getting close to the 56 Watt limit for a line on the PSU/SATA spec.

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Description

💼 Elevate your storage game with hot-swap ease and enterprise-grade speed!

STATUS AT A GLANCE - Individual power and activity LEDs per bay ensure you’re always in control and informed.
QUAD DRIVE HOT SWAP POWER - Transform 3x 5.25" bays into 4 seamless 3.5" HDD slots for ultimate storage agility.
TOOL FREE TRAYLESS DESIGN - Quick eject levers and secure key-locks make drive swaps a breeze—no downtime, no hassle.
OPTIMIZED THERMAL MANAGEMENT - Vented aluminum enclosure with speed-controlled fan keeps your drives cool under pressure.
UNIVERSAL SAS SATA COMPATIBILITY - Effortlessly supports SATA I/II/III and SAS I/II drives—future-proof your enterprise setup.

The StarTech 4-Bay Mobile Rack Backplane converts three 5.25" bays into a trayless, hot-swappable interface for up to four 3.5" SAS II/SATA III hard drives, delivering blazing 6 Gbps transfer speeds. Designed for professional environments, it features universal drive compatibility, individual bay LEDs, a secure key-lock system, and advanced cooling via a vented aluminum chassis and fan—ensuring reliable, high-performance storage with minimal downtime.

Specifications

Item weight	1.28 Kilograms
Memory storage capacity	6 GB
Compatible devices	Desktop
Hard disk form factor	5.25 Inches
Max number of supported devices	4
Data transfer rate	750 Megabytes Per Second
Global Trade Identification Number	00065030859547, 05057454485711, 07426800234200
Manufacturer	StarTech.com
UPC	650308595472 650361661282 065030859547 012305135486
Product Dimensions	19.7 x 14.6 x 12.6 cm; 1.28 kg
Item model number	HSB4SATSASBA
Series	HSB4SATSASBA
Color	Black
Form Factor	5.25-inch
Processor Count	1
Hard Disk Description	External
Hard Drive Interface	SATA 6 GB/s
Operating System	HSB4SATSASBA
Are Batteries Included	No
Lithium Battery Weight	3 Kilograms
Item Weight	1.28 Kilograms

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