ADATA Premier SP550 120GB, 240GB and 480GB SSD Review


ADATA SP550 Series – The Lowest Priced SSDs Around

If you are looking for a low cost SSD for you system you have likely seen the ADATA Premier SP550 SSDs for sale online. The Premier SP550 is one of the lowest priced SSDs around and feature a Silicon Motion SM2256 controller and SK Hynix 16nm Triple-Level Cell (TLC) NAND. The ADATA SP550 series offers up to 560MB/s read and up to 510MB/s write speeds for sequential performance and the maximum random 4K Read/Write speeds would be up to 80,000 and 75,000 IOPS. Performance varies greatly depending on the capacity of the drive (120GB, 240GB, 480GB, or 960GB), but those are pretty respectable numbers for an ultra-value SSD that costs as little as $0.21 per GB.

ADATA SP550 Series SSDs

ADATA Premier SP550 SSD Series Specifications

Capacity 120GB / 240GB / 480GB / 960GB
Form Factor 2.5″ w/ 7mm z-height
NAND Flash SK Hynix 16nm 2D ‘Planar’ TLC
Controller Silicon Motion SM2256
Dimensions (L x W x H) 100.45 x 69.85 x 7mm
Weight 47.5g
Interface SATA 6Gb/s
Operating Temperature 0C~70C
Storage Temperature -40C~85C
Shock Resistance 1500G/0.5ms
MTBF 1,500,000 hours
Power Management Slumber & DevSleep
TCG Opal Encryption No
TRIM Support Yes
Warranty 3 years

The ADATA SP550 series doesn’t support hardware encryption, but they do support DevSleep! These drives also support LDPC ECC Engine (Low Density Parity Check ECC), as well as a RAID Engine & Data Shaping to help extend the flash endurance. The ADATA SP550 series also supports SLC Caching and has a DDR3 DRAM Cache buffer for improved write speeds.

Capacity Read Speed
Sequential Read
Sequential Write
4K Random R/W
IOMeter (IOPS)
120GB Up to 560 Up to 410 Up to 530 Up to 410 Up to 60K/70K 90TB
240GB Up to 560 Up to 510 Up to 530 Up to 480 Up to 75K/75K 90TB
480GB Up to 560 Up to 510 Up to 530 Up to 480 Up to 75K/75K 180TB
960GB Up to 520 Up to 490 Up to 490 Up to 480 Up to 80K/35K 360TB

Performance on the ADATA SP550 series is different between some of the models, so if you are interested in buying the 120GB or 960GB version be sure you notice the performance pitfalls.

ADATA SP550 SSD Series Pricing on June 16th, 2016

ADATA SP550 Series Model Number Amazon Price $/GB
120GB Drive ASP550SS3-120GM-C $37.99 $0.32 per GB
240GB Drive ASP550SS3-240GM-C $54.99 $0.23 per GB
480GB Drive ASP550SS3-480GM-C $108.99 $0.23 per GB
960GB Drive ASP550SS3-960GM-C $205.99 $0.21 per GB

Street pricing on the ADATA SP550 series are among the lowest you’ll find for any SSD on the market today! Prices start out at $0.32 per GB on the 120GB drive, $0.23 on the 240/480GB drives and finally $0.21 per GB on the largest 960GB capacity drive. Even at these low price points the SP550 series drives still come with a free code for Acronis True Image HD. These prices are without any rebates, so the ADATA SP550 series is certainly affordable and should make for a great upgrade for anyone still running a hard drive that is looking to move to an SSD for the very first time. We’ve heard about people buying these for gaming consoles due to how inexpensive they are!

ADATA Premier SP550 SSDs

Today we’ll be looking at the ADATA SP550 120GB, 240GB and 480GB models!

ADATA SP550 SSD Accessory Bundle

The ADATA Premier SP550 bundle kits include a 7mm to 9.5mm adapter, quick start guide and a key for Acronis True Image HD Software. This software is great for hard drive cloning and the entire upgrade kit makes upgrading from a hard drive to an SSD painless. We always suggest doing a clean OS install with a new drive, but if your drive is in perfect working order you can clone it to an SSD in minutes and have a significantly faster system.

ADATA Premier SP550 SSDs Back Label

ADATA with with an all metal drive enclosure for the SP550 series and on the back of the drives you can see the product label that has the full part number, capacity, warranty code (serial number) and all that good stuff on it. All of the SP550 series drives are backed by a 3-year warranty.


The ADATA Premier SP550 SSD Series can use ADATA’s SSD Toolbox utility to configure, optimize and monitor your SP550 series SSD.

Let’s take a look at the test system and run some benchmarks!