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Description
Synology Network Attached Storage RX1222sas RackExpansion 12bay (Diskless) RetailMPN RX1222SAS Applied Models Supports creating volumes across different units SA series: SA3600, SA3400 Notes To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit. Storage Drive Bays 12 Compatible Drive Type (See all supported drives: https: www. synology. com en global compatibility) 3. 5" SAS HDD 3. 5" SATA HDD 2. 5"
MPNRX1222SAS
Applied Models
Supports creating volumes across different units
SA series:SA3600, SA3400
Notes
To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit.
Storage
Drive Bays
12
Compatible Drive Type (See all supported drives: https://www.synology.com/en-global/compatibility)
3.5" SAS HDD
3.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity
192 TB (16 TB drive x 12) (Capacity may vary by RAID types)
Hot Swappable Drive
Yes
RAID Management through Synology DSM
Yes
Notes
It is strongly recommended that you only install drives listed on your devices compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components.
"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
SAS IN-port
1
SAS OUT-port
1
Rack Installation Support
4-post 19" rack (Synology Rail Kit - RKS-02)
Notes
The rail kit is sold separately
Power
Power Supply Unit / Adapter
500 W
AC Input Power Voltage
100 V to 240 V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
194.4 W (Access)
82.56 W (HDD Hibernation)
British Thermal Unit
663.48 BTU/hr (Access)
281.77 BTU/hr (HDD Hibernation)
Redundant Power Supply (for RP model)
Yes
Notes
Power consumption is measured when it is fully loaded with Synology HAS5300-8T hard drive(s).
Temperature
Operating Temperature
0oC to 35oC (32oF to 95oF)
Storage Temperature
-20oC to 60oC (-5oF to 140oF)
Relative Humidity
5% to 95% RH
Others
System Fan
80 mm x 80 mm x 4 pcs
Easy Replacement System Fan
Yes
Noise Level
54.5 dB(A)
Notes
Noise Level Testing Environment: Fully loaded with Synology SAT5200-480G SSD in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A), Temperature: 24.25-25.75oC, Humidity: 58.2-61.8%
Certification
FCC
CE
BSMI
UKCA
EAC
VCCI
RCM
KC
Environment and Packaging
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 2
Expansion Cable: Mini-SAS HD X 2
Quick Installation Guide X 1
Optional Accessories
3.5" SATA HDD: HAT5300
3.5" SAS HDD: HAS5300
2.5" SATA SSD: SAT5210
Rail Kit Sliding: RKS-02
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1076 reviews
Sort
Product Reviews
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ.
Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that.
Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025
★★★★★ 5
Good stuff, but watch the temp
Model: NewSLS50_52
I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2023
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
★★★★★ 5
Supports DP Alt + Power Delivery from one source
This is one of the very, very few USB-C hubs out there that successfully pushes DisplayPort Alt and 100w PD functionality from one source cable to one device. My monitor has a USB-C DP alt port that also pushes 95w PD and this hub successfully pushes both of those to my laptop, phone, and android handheld console. The marketing material says something about USB PD cannot work with DP alt, but it seems to be working fine for me so who knows. With this little hub in-between the link from the monitor to the device, I can now add a USB ethernet adapter and game controller, and I only ever have to plug one USB-C cable into my device (and I am using a USB4 extension cable with no issues as well) and it all works perfectly!
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Supports Reverse Charging a Laptop on Monitors with USB-C PD!
This adapter is unique in that it supports reverse charging + video on the same port. I use this with an LG monitor (60W PD) and an M1 Pro Mac.
At first, I had connectivity issues: hub was disconnecting and reconnecting every few seconds. I followed advice to update the firmware on the hub, but that didn't solve the issue. Turns out, my monitor also needed a firmware update. Once I updated the monitor firmware, it stabilized and has been working great ever since.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
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