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3 Year Data Recovery Plan
from After Solutions $4.99
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.
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TERRAMASTER 2GB RAM Stick... has been added to your Cart
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Add to your order

3 Year Data Recovery Plan

from After Solutions
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.

2 Year Data Recovery Plan

from After Solutions
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your device stops working, the Rescue data recovery plan will recover the data from the failed device and return it to you on a new piece of external storage media.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.
1-Click ordering is not available for this item.

TERRAMASTER 2GB RAM Stick Memory Card for F2-221, F2-421, F4-421, F5-221, F5-421, F2-422, F4-422, F5-422, F8-422, F2-220, F4-220

4.1 out of 5 stars 471 ratings

Price: $49.99 & FREE Returns
Return this item for free
  • Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
  • Learn more about free returns.
How to return the item?
1) 2GB RAM

Enhance your purchase

Brand TERRAMASTER
Color 1) 2GB RAM
Memory Storage Capacity 2 GB

About this item

    This fits your .
  • Make sure this fits by entering your model number.
  • 2GB memory stick dedicated for TerraMaster F2-221, F2-421, F4-421, F5-221, F5-421, F2-422, F4-422, F5-422, F8-422, F2-220, F4-220. NOT compatible with F5-420, F2-420, F2-210, F4-210.
  • Total Capacity: 2GB
  • Memory Speed: 1,333 MHz
  • Voltage:1.35V
Make it a bundle
We found 1 bundle with this item:
TERRAMASTER 2GB RAM Stick Memory Card for F2-221, F2-421, F4-421, F5-221, F5-421, F2-422, F4-422, F5-422, F8-422, F2-220, F4-220

Frequently bought together

  • TERRAMASTER 2GB RAM Stick Memory Card for F2-221, F2-421, F4-421, F5-221, F5-421, F2-422, F4-422, F5-422, F8-422, F2-220, F4-
  • +
  • TERRAMASTER F5-221 NAS 5-Bay Cloud Storage Intel Dual Core 2.0GHz Plex Media Server Network Storage (Diskless)
  • +
  • Seagate IronWolf 4TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 5900 RPM 64MB Cache for RAID Network Attached Stor
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Product description

Color:1) 2GB RAM


2GB memory stick for TerraMasterF2-221, F2-421, F4-421, F5-221, F5-421, F2-422, F4-422, F5-422, F8-422, F2-220, F4-220. NOT compatible with F5-420, F2-420, F2-210, F4-210.

Total Capacity: 2GB
Memory Speed: 1,333 MHz
Voltage:1.35V

Product information

Color:1) 2GB RAM

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
471 global ratings
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Top reviews from the United States

Reviewed in the United States on September 9, 2017
Verified Purchase
102 people found this helpful
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Reviewed in the United States on December 29, 2018
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1.0 out of 5 stars TOS is easily hackable - I found hacker installed bit coin mining SW
By Verified Buyer on December 29, 2018
I have been using this over a year. One fine day I found humming FAN noise; upon investigating found that CPU usage was 100% (pathetically TOS showed CPU usage as 200%). Upon further investigating I found process 'xmrig' eating all CPU, unit become just inoperable. It was running all latest OS and there were no apparent way to kill the mining process. Virus scanner provided with TOS even didn't detect any malware installed. TOS was running bitcoin mining SW xmrig installed by some hacker as root and as a owner we don't have root password or sudo permission to kill it. Loosely define software security and poor OS design. Stay away even if this is offered for free.
Edit: Added pic of command line output.
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53 people found this helpful
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Reviewed in the United States on March 24, 2017
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4.0 out of 5 stars Nice Device, Some Memory Upgrading Issues
By Stevie on March 24, 2017
Overall, this seems like a pretty nice device and a good choice for beginners to the NAS world - well made and at a great price for the feature set.

The packaging was excellent, and the box even included a pretty substantial Philips screwdriver for screwing the hard drives into their trays. The same screwdriver also can be used to remove the fan to add a memory upgrade - more about that later. So, if you buy this, you will not need any additional tools. Note that I realize that Terra Master no longer officially supports end-user memory upgrades, but the slot is there and pretty easily accessible.

The device's cover is very substantial, made of a nice thick metal. The front silver-colored faceplate is a delicate plastic and easily scratched. The device is rather small compared to a similar QNAP or Synology - maybe a little wider, but barely taller than the hard drive sleeve itself. The hard drive sleeves are of a rather cheap feeling plastic. I installed two Seagate Ironwolf drives. I did have a metallic buzzing noise coming from the casing, which I was eventually able to make go away by reseating the hard drive trays.

A word of caution: I did a memory upgrade from the standard soldered-in 2 GB to 4 GB total, with the addition of a 2 GB memory 204-pin SODIMM, but it was not without issues. Much of the literature on the internet specifies either a 1.35v 1600 MHz card or a 1.35v 1333 MHz card, and I watched a You-Tube how-to video where the guy upgraded with a 1600 MHz card, but I could only get the 1333 to work. I put the 1600 in before initializing the device, and it powered on and the fan came on, but the hard drive lights remained amber and there was no LAN activity, and no start-up beep. I removed the memory, and the device booted up normally with a LAN connection and a beep. I shut it off, installed the 1333 MHz ram, and again it booted up properly. I then initialized it, installed TOS and apps, and the device was recognizing the memory correctly and everything was great. BTW, boot up is VERY fast with the GUI usable and ready for log-in just a couple minutes after starting up the NAS. This is the fastest NAS by far that I have, to boot up and log into.

I then thought, well maybe I didn't have the first memory card seated properly, so I removed it and replaced it with an identical 2 GB 1600 SODIMM I had, and again, hard drive lights stayed amber, no beep, and no boot up. At this point, as mentioned above, the device had already been initialized, TOS installed, and was usable. I put a 1333 back in, and got a full boot up with no issues. All of these cards were Crucial brand and all purchased new here on Amazon.

The memory upgrade was tougher than it looked physically, too. See pictures - the face plate to the device has these three "teeth" that prevent you from inserting the memory at an angle and pressing it down and into the socket. You need to remove the two screws on either side of the memory socket to loosen the face plate enough where you can gently push it back far enough to give you enough clearance to push the memory down into its socket.

The TOS that this NAS uses is very clean, easy to install, and perfect for an NAS newbie who doesn't demand a huge amount of features but needs all the basic stuff. I found the interface to be very polished and quick - not as capable overall as QNAP's or Synology's, and not nearly as many settings or options, but was slicker and quicker than either. You can also expand it to take over your entire desktop instead of a window within it. I have to give Terra Master credit for one thing - the setup process couldn't have been easier or better designed - very Synology-esque in its simplicity and speed, and very easy for an inexperienced NAS user to get through without help.

Overall, a nice device for mainstream needs, and it feel well made and polished. I haven't used many of the features yet, but there is nowhere near the app selection that you have with Synology or QNAP, but then, many users don't need all those capabilities. I also noticed the TOS stays logged in, unlike either my Synology or QNAP web-GUIs.
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74 people found this helpful
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Reviewed in the United States on August 14, 2018
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5.0 out of 5 stars Great 4 Bay NAS, I mean 5 Bay
By JoeteckTips on August 14, 2018
Thank you TerraMaster for hiding a 5 Bay NAS inside of a 4 Bay!
Yes, this F4-220 can be changed to a 5 bay NAS. Inside it has 5 SATA connections of which 4 are usable, the 5th is block by the plastic front bezel, which is easily modifiable.
Plus up-gradable to 4gig.
My recommended model number for my creation is: F5-240.
Still a J1800 Dual Core Celeron 2.41Ghz, but now with 4gig of RAM, hence the F5-240 model number.
If you have the guts in doing this modification, go for it. The NAS goes from 48TB to 60TB. Five 12TB drives in RAID 0.
I have it configured with five 3TB drives in RAID 5. 12TB of space.
I have created a how to video. Find it. ;)
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14 people found this helpful
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Top reviews from other countries

Dave Raine
5.0 out of 5 stars Perfect Centre for all my home data
Reviewed in the United Kingdom on July 28, 2018
Verified Purchase
30 people found this helpful
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Chris B
5.0 out of 5 stars Lost of functionality and solid build.
Reviewed in the United Kingdom on November 24, 2017
Verified Purchase
13 people found this helpful
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D. Gough
4.0 out of 5 stars Plex 4k 10bit transcode does not work, encryption not supported
Reviewed in the United Kingdom on November 5, 2018
Verified Purchase
7 people found this helpful
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AlanC
4.0 out of 5 stars Brilliant Device - pity about the documentation
Reviewed in the United Kingdom on August 22, 2018
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7 people found this helpful
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A. Simmons
5.0 out of 5 stars Great little NAS Box
Reviewed in the United Kingdom on April 28, 2019
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3 people found this helpful
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