ADATA SU800 256GB 3D-NAND Solid State Drive
$19.99
$37.99
47% off
Reference Price
Condition: New
Capacity: 256GB
Top positive review
1 people found this helpful
Great hard drive replacement, fast and reliable, but be sure it fits your case.
By George McGinn on Reviewed in the United States on May 27, 2019
For my programming and media uses, I picked this 1TB SSD because of the speed and the fact I wanted an onboard memory/hard drive device for my raspberry PI. I find it very reliable, very responsive when retrieving documents, and I am able to do things like write programs while blasting my music, stored on the SSD (I have close to 5000 songs loaded on my card) and using the VLC player, I've created playlists where I can just leave the songs crank on my three-speaker system that was part of one of my windows PC media centers, so it has its own power source and doesn't draw it from the raspberry PI card, and right and run my own code. I've been running it now for close to three weeks nonstop as I now use my raspberry PI as my main computer, and I've had no issues with the memory card at all. I've had no lost files I've had no corrupted areas, and the SSD card comes up immediately. The only thing I wish I could've done differently, and this is due to my inexperience in Raspberry and forgetful of my UNIX days, is to properly set the card up so that my device just boots from the microSD card and everything else is stored on the SSD memory. What I wish I could've done differently was as soon as I created the first partition was to format the SSD into a 1TB partition rather than let it create thousands of partitions as I add new files and programs. No I gave this card a three star rating or ease of installation because when you look at the photo and the lack of anything in the description, it seemed like it would fit one of the cases that I purchased, but when I got it I was rudely awakened to the fact that it does not fit. So my advice to you is unless you plan to 3D print your own case, if you are used to an open air system for your raspberry PI, then this actually would be a five star installation. But be careful when trying to purchase a case to enclose this SSD card. My next raspberry PI will use the shorter SSD cards and they will fit in a double height case.
Top critical review
1 people found this helpful
Not the best for RAID; Watch for Reallocated Sector Errors (SMART Errors) and firmware versions
By Amazon Shopper on Reviewed in the United States on December 24, 2019
The ADATA SU800-256 is not be your best choice for RAID arrays and reliability may be an issue. Details below. I purchased five ADATA SU800-256 SSDs for a RAID-10 configuration (4 for the RAID array and a 5th SU800-256 as a backup). The first thing I noticed was that the SSDs had different firmware versions (I later learned from ADATA that this was due to different controllers and/or different RAM chip densities used in each SSD). ADATA Tech Support advised me to make sure the SU800s in my RAID array had the same controller. After getting 4 SSDs with same firmware (R0427ANR) and installing, I immediately noticed that one of the drives was reporting SMART events (Reallocated Sectors Count and Reallocation Event Count SMART events were both increasing regularly) while the other 3 SSDs had no Reallocated Sector events. My Intel RAID controller was also reporting a few "blocks with media errors" which I was able to temporarily able resolve by running Intel's Rapid Storage "Verify" a few times. I'm not sure if this is common manufacturer practice, but ADATA produces the SU800-256GB with potentially different controllers, potentially different RAM chips and potentially different firmware (varying between units with the same part number). If you are installing these SU800-256 SSDs in a RAID array, this makes maintenance difficult, because the ADATA firmware versions for the SAME SU800-256 part number are not compatible with each other and you won't be able to upgrade your SU800-256 SSDs with the same firmware (if your SSDs have different controllers and RAM chips). Amazon sells these SU800-256 SSDs (probably unknowingly) as identical units even though they are NOT identical. I RMA'd the failing SU800-256 and received a replacement from Amazon that had yet ANOTHER firmware version (because of different RAM chip densities). The 3 firmware versions that I have observed in my small sample of SU800-256 SSDs are R0427ANR, R0427AC and Q0922FS. These firmware versions are not compatible with each other and can't be upgraded from/to each other. This makes maintenance of multiple SU800-256 SSDs a real pain. Had I known this, I would not have purchased ADATA SU800-256 SSDs for my RAID array.
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