Site updated: 23.3.19

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Quiet aka Silent Fast PC: Bought a Nofan A850i Silent PC (i7-16Gb-Palit GeForce GTX 1050-1Tb Samsung 970 EVO Phoenix... (21st February 2019 via Trustpilot)
840 EVO 1TB SSD Three-layer Cell Solid State Drive
(4 customer ratings)
840 EVO 750GB SSD Three-layer Cell Solid State Drive
(2 customer ratings)
840 EVO 500GB SSD Three-layer Cell Solid State Drive
(4 customer ratings)
840 EVO 250GB SSD Three-layer Cell Solid State Drive
(11 customer ratings / 1 review)
840 EVO 120GB SSD Three-layer Cell Solid State Drive
(7 customer ratings)

Samsung 840 EVO Three-layer Cell Solid State Drives

- Replaced by the Samsung 850 EVO Solid State Drives

A top-performing and more affordable version of the 840 PRO series drives, the 840 EVO SSDs are a great solution for an unbeatable combination of price, speed and capacity.

Samsung have been market leaders in the SSD arena from a very early stage, and have had a competitive edge over their rivals because of the fact that they own and control the whole of the production process of all the components which go up to making a complete solid state drive. Their flagship 840 PRO range represents the cream of the crop in terms of performance and reliability, even challenging top brands like Intel and Crucial.

Now, Samsung have decided to get even more serious about their game and have launched the EVO series of SSDs. These aim to be more affordable than the PRO series, whilst still offering top notch performance and actually even exceeding the PRO series in terms of capacity. The EVO drives use Three-layer cell (TLC) NAND flash which is cheaper to manufacture than single layer cell (SLC) flash memory. Although it has a slower access speed and shorter expected lifespan, this is made up for by the fact that it is linked to an SLC "TurboWrite" buffer which caches data operations and presents the drive to the host PC as being extremely responsive.

Although the EVO drives have only a three year warranty compared with five years on the PRO series, Samsung claim that resistance to shock, vibration and high temperature is improved. The 840 EVO design is very sturdy and you can be confident about its long-term use and reliability. The drive also has internal temperature monitoring. Dynamic thermal guarding is built into the firmware of the 840 EVO to prevent data errors due to overheating. Even when the SSD is exposed to extreme temperature and high ambient temperature environments, the thermal guarding will always ensure data safety through automatic power control.


  1. Great performance designed for consumer and enthusiast use
  2. Ultra low power consumption for energy efficiency and lower electricity bills
  3. Cortex-R4 CPU-based Samsung MEX controller gives great data throughput
  4. Available in several capacities from 120GB to 1TB and very easy to install

Specifications120GB 840 EVO1TB 840 EVO250GB 840 EVO500GB 840 EVO750GB 840 EVO
ModelMZ-7TE120BW MZ-7TE1T0BW MZ-7TE250BW MZ-7TE500BW MZ-7TE750BW
Capacity120 GB 1TB 250 GB 500 GB 750 GB
DDR2 SDRAM cache memory256 MB 1 GB 512 MB 1 GB
Sequential ReadUp to 540MB/sec
Sequential WriteUp to 410MB/sec Up to 520MB/sec
IOPS Random Read (4KB, QD32)Up to 94000 Up to 98000 Up to 97000 Up to 98000
IOPS Random Write (4KB, QD32)Up to 35000 Up to 90000 Up to 66000 Up to 90000
IOPS Random Read (4KB, QD1)Up to 10000
IOPS Random Write (4KB, QD1)Up to 33000
Form factor2.5 inch
InterfaceSATA 6Gbps (3Gbps compatible)
Dimensions100 x 69.85 x 6.8mm
Memory typeSamsung 1x nm Toggle DDR 2.0 NAND Flash Memory (400Mbps)
Controller typeSamsung 3-core MEX
Power consumption0.1 Watts (typical)
Power consumption (idle)0.045 Watts (typical, power management enabled)
Supply voltage5V ± 5% allowable
Reliability1.5 Million Hours MTBF
Operating Temperature0 - 70°C
Maximum shock1500G & 0.5ms (Half sine)
TRIM SupportedYes
S.M.A.R.T SupportedYes
Garbage Collection AlgorithmAuto
AES 256bit Encryption (Class 0)Yes
World Wide Name supportYes
SoftwareMagician Software for SSD management
Warranty36 months
EAN barcode8806085767546 8806085767584 8806085767553 8806085767560 8806085767577

Customer Reviews

1TB 840 EVO
750GB 840 EVO
500GB 840 EVO
250GB 840 EVO
120GB 840 EVO

We haven't received any reviews of this product yet.

We haven't received any reviews of this product yet.

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SSD + excellent service = a winner


The EVO (256gb) works like a dream.

The level of service from Quiet PC is truly excellent. I would heartily recommend using Quiet PC as they offer great value at reasonable cost.

“It's unwise to pay too much, but it's worse to pay too little. When you pay too much, you lose a little money - that's all. When you pay too little, you sometimes lose everything, because the thing you bought was incapable of doing the thing it was bought to do. The common law of business balance prohibits paying a little and getting a lot - it can't be done. If you deal with the lowest bidder, it is well to add something for the risk you run, and if you do that you will have enough to pay for something better.”

- John Ruskin

I have no commercial interest in the company. I'm just a satisfied customer.

We haven't received any reviews of this product yet.


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