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We recommend 256GB Samsung 850 Pro Series 2.5-inch 7mm SATA 6.0Gb/s Solid-State Drive (Mfr P/N: MZ-7KE256BW) from Samsung for $158.99 as a suitable alternative.

Samsung

256GB SSD 840 Pro Series

2.5-inch | SATA 6.0Gb/s
Blazing Speeds and Unrivaled Performance
Samsung's SSD 840 Pro Series is capable of delivering up to 540MB/s and 450MB/s of sequential read and write speeds for ultra-fast file transfers-including random speeds of up to 100K IOPS for the fastest real-world performance.* The SSD 840 Pro Series provides workstation-class performance for seamless video editing or the ultimate gaming experience.
Increased Reliability and Security
Keep up with demanding workloads while safeguarding your data. Samsung-designed multi-core controller and firmware ensure long-term sustained computing with superior write performance for non-compressible data like images, music and videos.** AES 256-bit full disk encryption provides advanced data security backed by a 5-year limited warranty to deliver a secure, reliable solution.
Precision Engineering
Samsung's SSD 840 Pro Series weighs only 2 oz. and is 100% Samsung designed and manufactured using the highest industry standards and advanced Samsung memory technology. No moving parts mean no hard-drive spin-ups, no noise and superior data protection. As the first SSD to support Device Sleep mode for Windows 8/Haswell chipsets, it also features industry-leading energy efficiency that provides up to 50 minutes longer battery life.***

* Real-world performance based on PC Mark 7 performance versus leading competition

* *Incompressible data performance based on AS-SSD Sequential Write performance versus leading competition

***up to 50 minutes longer battery life versus standard HDDs and some competitor SSDs based on MobileMark 2007 results with DIPM enabled versus leading competition

256GB SSD 840 Pro Series Specifications:

Specifications

Form Factor
2.5" 7mm (Ultraslim)
Interface
SATA 6Gb/s
Capacity1
256GB
Formatted Capacity2
238GiB
Format

Physical

Height (max)
7mm (0.275″)
Weight (typical)
68g (0.15 lbs.)

Reliability3

Warranty
5 Year Samsung Warranty

Performance

Sequential Read (up to)
540MB/s
Sequential Write (up to)
520MB/s
Random Read
Up to 100,000 IOPS
Random Write
Up to 90,000 IOPS

Power

Maximum Start Current, DC
5V ± 5%
Seek Power
0.15 Watts

Environmental (Operating)

Ambient Temperature (°F)
32°F to 140°F
Ambient Temperature (°C)
0°C to 60°C
Altitude
-304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

Environmental (Non-Operating)

Altitude
-304.8 m to 12,192 m (-1000 ft to 40,000+ ft)

Acoustics

Idle (Typical)
0.0 bels
Seek (Typical)
0.0 bels
  1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
  2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
  3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
Manufacturer provided specifications for Samsung p/n MZ-7PD256BW UPC#: 887276001173
Samsung 256GB SSD 840 Pro Series Mfr P/N: MZ-7PD256BW OWC SKU: SAMMZ7PD256BW Internal 2.5" Solid State Drive Samsung 5 Year Limited Warranty
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