Western Digital Part #/MPN: WD4000AAJS
DiscTech Item #: WDC-WD4000AAJS-FR-OE
- Factory RefurbishedCondition Levels Explained
The product has been built, rebuilt or repaired at the original manufacturer's factory (Note we NEVER sell 3rd party repaired items, as we do not find them to be reliable enough). Often these products are extremely close to new in condition, except that they contain at least one recycled or repaired component. Failure rates are often lower on these devices since they have been far more thoroughly tested than new items.
Product Warranties ExplainedThe product has a manufacturer warranty for the time period specified.
- Warranty:1 Year DiscTechProduct Warranties Explained
The product has a DiscTech warranty for the time period specified. View our limited warranty
- In Stock:9Need more?Stock Levels
This stock level is real time and accurate. This quantity is available for same-day shipment. Larger quantities can take up to a week to ship. Call us for larger quantities that you need urgently.
Capacity: 400GB
Speed: 7,200RPM
Interface Types: SATA
Form Factor: 3.5inx1.0in LFF Hard Drive
Sector Size: 512 / 512e
Sustained Throughput: 300
Average Seek Time: 8.9
Electrical Interface: SATA 300 - 3.0Gbps
On-Board Cache: 8MB
Western Digital WD4000AAJS 400GB 3.5in 3Gbps 7.2K RPM Caviar SE SATA HDD - Factory Refurbished
Western Digital WD4000AAJS 400GB 3.5" 3.0 Gbps 7200 RPM Caviar SE Serial ATA Hard Disk Drive - Refurbished
WD Caviar® SE
Desktop Hard Drives
Cool-running, superior performance, and industry-leading reliability make these drives the perfect hard drives for desktop, business, and consumer electronics storage — ideal for high-performance family computing such as photo editing, multimedia functions, and business applications such as spreadsheets and databases.
Product Benefits
Fast — WD, the first to introduce an 8 MB buffer, has advanced the caching algorithms of this new and improved family of hard drives, resulting in next-generation high performance.
Cool — Heat is a major contributor to hard drive wear, and cool drive operating temperatures help increase long-term drive reliability. WD achieves the lowest operating temperature of any hard drive in its class by lowering the drive’s power consumption through advanced design of electronics and firmware.
Data Lifeguard Tools™ — This software utility works with embedded Data Lifeguard™ features (including shock protection, an environmental protection system, and error detection and repair) to make hard drive installation, management, and diagnostics simple and worry-free.
Compatibility:
This drive is compatible with any server that accepts 3.5"x1.0" (LFF) SATA drives.
SPECIFICATIONS | ||
---|---|---|
Model Number | WD4000AAJS | |
Capacity | 400GB | |
Formatted Capacity | 400,088 MB | |
Used Sectors Per Drive | 781,422,768 | |
Interface | 300 MB/s Serial ATA 2.0 (backwards compatible with Serial ATA 1.0) | |
Bytes Per Sector | 512 | |
Dedicated Landing Zone | Yes | |
Actuator Latch/Auto Park | Yes | |
Data Transfer Rate (maximum) - Buffer to Host | 300 MB/s max | |
Average Read Seek | 8.9 ms (average) | |
Track-to-track Seek | 2.0 ms (average) | |
Full Stroke Read Seek | 21 ms (average) | |
Average Latency | 4.2 ms | |
Rotational Speed | 7200 RPM | |
Read Cache | Adaptive | |
Write Cache | Yes | |
Buffer | 8 MB | |
Drive Ready Time | 9.0 sec average | |
Start/Stop Cycles | 50,000 min | |
Error Rate (non-recoverable) | <1 in 10e14 bits read | |
LBA support | Yes | |
Height | 1.028 in (25.4 mm) max) | |
Length | 5.787 in (147.0 mm) max | |
Width | 4.0 in (101.6 mm) ± .01 in. | |
Weight | 1.32 lb (0.60 kg) ± 10% | |
Read/Write - 12 V (± 10%) - 5V(± 5%) - Power | 450 mA 800 mA 9.50 W | |
Idle - 12 V (± 10%) - 5V(± 5%) - Power | 430 mA 730 mA 8.75 W | |
Standby - 12 V (± 10%) - 5V(± 5%) - Power | 20 mA 270 mA 1.60 W | |
Sleep - 12 V (± 10%) - 5V(± 5%) - Power | 20 mA 250 mA 1.50 W | |
Shock - Operating (2ms) - Non-operating (2ms) - Half sine wave measured in 2 ms | 65G 250G duration, measured withough isolation | |
Vibration Operating - Random - Linear Non-operating - Linear | 0.004 g2 / Hz (10 to 300 Hz) 20-300 Hz, 0.75G (0 to peak) 5-20 Hz, 0.195 inches (dbl amp) 20-500 Hz, 4G (0 to peak) | |
Operating Temperature and Humidity - Temperature - Humidity - Thermal Gradient | 5°C to 55°C (41°F to 131°F) 5-95% RH non-condensing 20°C/hour (maximum) | |
Non-Operating Temperature and Humidity - Temperature - Humidity - Thermal Gradient | -40°C to 65°C (-40°F to 149°F) 5-95% RH non-condensing 30°C/hour (maximum) | |
Acoustics (average) - Idle Mode - Seek Mode 0 - Seek Mode 3 | 26 dBA 31 dBA 27 dBA |
Click here to view the manufacturer's item description/brochure
ROHS Compliant
Weight: 1.8 lb
Warranty: 1 Year DiscTech
Factory Refurbished
The product has been built, rebuilt or repaired at the original manufacturer's factory (Note we NEVER sell 3rd party repaired items, as we do not find them to be reliable enough). Often these products are extremely close to new in condition, except that they contain at least one recycled or repaired component. Failure rates are often lower on these devices since they have been far more thoroughly tested than new items.
The product has a manufacturer warranty for the time period specified.
1 Year DiscTech Warranty
The product has a DiscTech warranty for the time period specified. View our limited warranty