Site updated: 23.3.19

No tracking when I ordered from NZ but…

No tracking when I ordered from NZ but the price for gigabyte pcie wifi card is pretty good. Received my order within 2 weeks. (25th January 2019 via Trustpilot)
840 PRO 512GB SSD High-Performance Solid State Drive
(2 customer ratings)
840 PRO 256GB SSD High-Performance Solid State Drive
(3 customer ratings)
840 PRO 128GB SSD High-Performance Solid State Drive
(4 customer ratings)

Samsung 840 PRO Solid State Drives

- Replaced by the Samsung 850 PRO Solid State Drives

Samsung are the only SSD manufacturer to manufacture all of the component parts of the drive themselves, giving them complete control over the full package. And with performance and quality like this, it really shows.

An essential element for professional computing

As a perfectionist in search of the best performance and with a desire to be among the best in your field, you deserve Samsung's SSD 840 PRO. The 840 PRO is the fastest and most-reliable SSD on the market - like nothing you've seen before. It assures a top-notch user experience, which guarantees better output on your behalf. The 840 PRO is the best choice for professionals looking to supercharge their workflow.

Unrivalled high performance. The top SSD for the top professionals

The Samsung SSD 840 PRO is a high-performance SSD designed for power users. Capable of delivering up to 100,000 IOPS, the 840 PRO offers the ultimate performance for power computing when it matters most. Sophisticated performance enhancing features deliver consistent speed for demanding applications under heavy workloads.


  1. Incredibly high performance designed for professional and business use
  2. Ultra low power consumption for energy efficiency and longer battery life
  3. Cortex-R4 CPU-based Samsung MDX controller gives great throughput
  4. Available in several capacities and easy to install

Specifications128GB 840 PRO SSD256GB 840 PRO SSD512GB 840 PRO SSD
ModelMZ-7PD128BW MZ-7PD256BW MZ-7PD512BW
Capacity128 GB 256 GB 512 GB
DDR2 SDRAM cache memory256 MB 512 MB
Sequential ReadUp to 530MB/sec Up to 540MB/sec
Sequential WriteUp to 390MB/sec Up to 520MB/sec
IOPS Random ReadUp to 9800 Up to 9900
IOPS Random WriteUp to 31000
Form factor2.5 inch
InterfaceSATA 6Gbps (3Gbps compatible)
Dimensions100 x 69.85 x 6.8mm
Memory typeSamsung 2x nm Toggle DDR 2.0 NAND Flash Memory (400Mbps)
Controller typeSamsung 3-core MDX
Power consumption0.349 Watts (power management disabled)
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 Full Disk Encryption (Class 0)Yes
World Wide Name supportYes
SoftwareMagician Software for SSD management
Warranty60 months
EAN barcode8806085216655 8806085216686 8806085216716

Our Address

Quiet PC Ltd
Brawby Grange
YO17 6PZ
United Kingdom

Our Numbers

Useful Information

Keep In Touch

MasterCardMaestroPayPalAmerican ExpressVisaVisa Electron
30 day money back guarantee
2 year warranty

All prices exclude import tax. © 2000-2019 Quiet PC Ltd. If you have seen an error on this page, please let us know.