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Brands arrow Samsung arrow SSD 840 PRO 256GB
WorkCentre 3550QNAP EJ1600 v2

SSD 840 PRO 256GB

( Samsung )
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SSD 840 PRO 2.5-inch SATA 256GB


Samsung SSD 840 PRO delivers the unrivalled user experience that professionals need, giving you high-speed, powerful computing performance and outstanding multitasking

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

essential element for professional computing 01

Unrivaled 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.

unrivaled high performance

Industry-leading reliability

From the world’s leading storage engineers at the #1 maker of SSD components, Samsung’s SSD 840 Series delivers rock-solid reliability and sustained high performance over time and under heavy use. Additionally, the 840 PRO carries a generous 5-year limited warranty.

industry-leading reliability

Multi-tasking multiplied. A powerful complement to Windows 8

Outstanding Multi Tasking Performance: Windows 8’s intuitive new Metro UI encourages multitasking. Samsung’s 840 Series SSD ensures users will experience great, lag-free performance when working with multiple applications. Consistently Fast Boot Time: Worn-in Windows installations must manage a plethora of third-party applications, many of which load instructions at start-up. While an HDD will suffer performance deficits over time, the 840 Series industry-leading Random Read Speeds and Latency time ensure that boot times remain fast even after months of heavy OS use and application installs.

multi-tasking multiplied 01

A True End-to-End, Integrated Solution

Samsung SSDs are designed completely in-house. To arrive at the perfect solution, Samsung builds all of the main SSD components itself. The result is enhanced performance with Toggle DDR2 NAND flash, lower power consumption with LPDDR2 cache memory, and better energy efficiency with the 3-core MDX controller

true End-to-End integrated solution

Toggle DDR2 NAND Flash Memory

Samsung’s Toggle DDR2 NAND flash chips enable data transfer rates of up to 400 megabits per second (Mbps)-more than three times as fast as previous chips – offering dramatic read speed performance improvements. In addition to performance improvements, the chips also consume less power than competing NAND.

toggle DDR2 NAND Flash Memory

3-core MDX controller

More powerful and energy-efficient than our previous generation controller, the new Cortex-R4 CPU-based Samsung MDX controller accomplishes more under the same power conditions than the previous-generation MCX controller.

3-core MDX controller

Ultra Low Power Consumption for Longer Battery Life

Samsung has made major leaps forward in power efficiency with the 840 Series. It boasts the lowest idle power consumption of any SSD*, an extremely important achievement considering that SSDs spend a vast majority of their time sitting idle (a positive side-effect of their extremely fast processing speeds). In fact, Samsung's new MDX controller consumes only 40mwatt of power during idle mode - half that of its predecessor and up to 97% less than other SSD controllers. Further improvements come from the use of LPDDR2 cache memory, which offers higher performance while consuming 30% less power when active and 93% less power when idle than regular DDR2 or DDR3 memory. All of this results in an improvement of up to 30 minutes in battery life over the 830 Series, letting you get more out of your mobile experience. *MobileMark2007 CPU: Intel core-i5-2410M CPU @ 2.3GHz Chipset: Intel QM67 PCH (Integrated Intel GFX) Memory: 4GB 1,067HMHz DDR3

Ultra Low Power Consumption for Longer Battery Life

Keep your data safe with Self-Encrypting Drive (SED) Technology

Simply enable an HDD password via your computer’s BIOS, and Samsung’s SSD 840 applies data encryption automatically. You can re-purpose your drive or dispose of your data simply by running a Secure Erase through Samsung’s Magician software.
* Features and specifications are subject to change without prior notification.

keep your data safe with Self-Encrypting Drive SED Technology



General Feature


Client PCs, Enterprise Computing 1
(1:For enterprise PC usage(e.g.servers), a minimum of 6.7% over-provisioning(OP) is recommended and can be set through Magician)


256GB (1GB=1 Billionbyte by IDEMA)
* Actual usable capacity may be less (due to formatting, partitioning, operating system, applications or otherwise)

Form Factor

2.5 inch Form Factor


SATA 6Gb/s Interface, compatible with SATA 3Gb/s & SATA 1.5Gb/s interface

Dimension (WxHxD)

100 X 69.85 X 6.8 (mm) Dimension


Max 53.5g Weight

Storage Memory

Samsung Toggle DDR 2.0 NAND Flash Memory (400Mbps, 2xnm/1xnm)


Samsung 3-core MDX Controller

Cache Memory

Samsung 512 MB Low Power DDR2 SDRAM cache memory

Special Feature

TRIM Support

TRIM Supported

S.M.A.R.T Support

S.M.A.R.T Supported

GC (Garbage Collection)

Auto Garbage Collection Algorithm

Encryption Support

AES 256-bit Encryption (Class 0)

WWN Support

World Wide Name supported

Device Sleep Mode Support



Sequential Read

Up to 540 MB/sec Sequential Read
* Performance may vary based on system hardware & configuration

Sequential Write

Up to 520 MB/sec Sequential Write
* Performance may vary based on system hardware & configuration

Random Read (4KB, QD32)

Up to 100,000 IOPS Random Read
* Performance may vary based on system hardware & configuration

Random Write (4KB, QD32)

Up to 90,000 IOPS Random Write
* Performance may vary based on system hardware & configuration

Random Read (4KB, QD1)

Up to 9,900 IOPS Random Read
* Performance may vary based on system hardware & configuration

Random Write (4KB, QD1)

Up to 31,000 IOPS Random Write
* Performance may vary based on system hardware & configuration


Average Power Consumption (system level)

*Average: 0.15 Watts (Mobilemark2007)
* Maximum: 3.64Watts (Seq.Write@IOmeter)
* Actual power consumption may vary depending on system hardware & configuration

Power consumption (Idle)

0.02 Watts (Typical, DIPM enabled value)
* Actual power consumption may vary depending on system hardware & configuration

Allowable Voltage

5V ± 5% Allowable voltage

Reliability (MTBF)

1.5 Million Hours Reliability (MTBF)

Operating Temperature

0 - 70 ℃ Operating Temperature


1,500G & 0.5ms (Half sine)


Installation Kit

Not Available


Management SW

Magician Software for SSD management



5 Years Limited Warranty
※ For enterprise applications, 5 years limited warranty assumes a maximum average workload of 40GB/day (calculated based on host writes and on the industry standard of 3-month data retention).
Workloads in excess of 40GB/day are not covered under warranty.


Last Updated: Wednesday, 01 April 2020 14:19

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