Western Digital Part #/MPN: WD400BD
DiscTech Item #: WDC-WD400BD-BN-OE-DEL
- Brand NewCondition Levels Explained
The product is brand new.
- Warranty:1 Year DiscTechProduct Warranties Explained
The product has a DiscTech warranty for the time period specified. View our limited warranty
- Low Stock:Call for ETAStock Levels
This item is currently (nearly) out of stock. It may be possible to arrange fast shipment. If you need it urgently call us. Otherwise, it usually ships within 1 week.
Capacity: 40GB
Speed: 7,200RPM
Interface Types: SATA
Form Factor: 3.5inx1.0in LFF Hard Drive
Sector Size: 512 / 512e
Average Seek Time: 8.9 / 10.9
Electrical Interface: SATA 300 - 3.0Gbps
On-Board Cache: 2MB
Western Digital Caviar 40GB 7.2K SATA Hard Drive WD400BD - Brand New OEM
Western Digital Caviar 40GB 7.2K SATA Hard Drive WD400BD - Brand New OEM
Performance Specifications | |
Rotational Speed | 7,200 RPM (nominal) |
Buffer Size | 2 MB |
Average Latency | 4.20 ms (nominal) |
Contact Start/Stop Cycles | 50,000 minimum |
Seek Times | |
Read Seek Time | 8.9 ms |
Write Seek Time | 10.9 ms (average) |
Track-To-Track Seek Time | 2.0 ms (average) |
Full Stroke Seek | 21.0 ms (average) |
Transfer Rates | |
Buffer To Host (Serial ATA) | 300 MB/s (Max) |
Buffer To Disk | 748 Mbits/s (Max) |
Physical Specifications | |
Formatted Capacity | 40,020 MB |
Capacity | 40 GB |
Interface | SATA 300 MB/s |
User Sectors Per Drive | 78,165,360 |
Physical Dimensions | |
English | |
Height | 1.028 Inches (Max) |
Length | 5.787 Inches (Max) |
Width | 4.00 Inches (+/- 0.010 inch) |
Weight | 1.60 Pounds |
Metric | |
Height | 26.1 mm (Max) |
Length | 147 mm (Max) |
Width | 101.6 mm |
Weight | 0.73 kg |
Environmental Specifications | |
Operating Shock (Read) | 65G, 2 ms |
Non-operating Shock | 350G, 2 ms |
Acoustics | |
Idle Mode | 30 dBA (average) |
Seek Mode 0 | 32 dBA (average) |
Seek Mode 3 | 31 dBA (average) |
Temperature (English) | |
Operating | 41° F to 131° F |
Non-operating | -40° F to 149° F |
Temperature (Metric) | |
Operating | 5° C to 55° C |
Non-operating | -40° C to 65° C |
Humidity | |
Operating | 5-95% RH non-condensing |
Non-operating | 5-95% RH non-condensing |
Altitude (English) | |
Operating | -1,000 feet to 10,000 feet |
Non-operating | -1,000 feet to 40,000 feet |
Altitude (Metric) | |
Operating | -305M to 3,050M |
Non-operating | -305M to 12,200M |
Operating Vibration | |
Linear | 10-300 Hz, 3.0G (0 to peak) |
Random | 10-300 Hz, 0.008 g² / Hz |
Non-operating Vibration | |
Low Frequency | 5-20 Hz, 0.195 inches (double amplitude) |
High Frequency | 20-300 Hz, 4.0G (0 to peak) |
Electrical Specifications | |
12 VDC Current Requirements | |
Read/Write | 450 mA |
Idle | 470 mA |
Standby | 23 mA |
Sleep | 23 mA |
5 VDC Current Requirements | |
Read/Write | 800 mA |
Idle | 750 mA |
Standby | 330 mA |
Sleep | 200 mA |
Power Dissipation | |
Read/Write | 12.80 Watts |
Idle | 9.50 Watts |
Standby | 1.90 Watts |
Sleep | 1.30 Watts |
Click here to view the manufacturer's item description/brochure
Weight: 1.8 lb
Warranty: 1 Year DiscTech
Brand New
The product is brand new.
1 Year DiscTech Warranty
The product has a DiscTech warranty for the time period specified. View our limited warranty