Western Digital Part #/MPN: WD400BD
DiscTech Item #: WDC-WD400BD-NP-OE
- New PullCondition Levels Explained
The product has been mounted in a brand new system (e.g. server), then removed from the system, before entering service. These products may have some hours of usage due to system build time / burn-in / testing etc. New Pulls are guaranteed to have at least 95% (often 99%) of their service life remaining , they may show signs of being physically mounted and dismounted. All handling is performed by trained technicians, taking full ESD precautions.
- 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: 7.2K RPM
Interface Types: SATA
Form Factor: 3.5" LFF Hard Drive
Sector Size: 512 / 512e
Average Seek Time: 8.9 / 10.9
Electrical Interface: SATA 300 - 3Gbps
On-Board Cache: 2MB
Western Digital Caviar 40GB 7.2K SATA Hard Drive WD400BD - New Pull OEM
WD Caviar SATA/EIDE hard drives are offered in capacities up to 250 GB, with performance geared to advanced and mainstream desktop personal computers. WD Caviar drives are built to the highest standards of quality and reliability because we understand the importance of data that is entrusted to our products.
| 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
New Pull
The product has been mounted in a brand new system (e.g. server), then removed from the system, before entering service. These products may have some hours of usage due to system build time / burn-in / testing etc. New Pulls are guaranteed to have at least 95% (often 99%) of their service life remaining , they may show signs of being physically mounted and dismounted. All handling is performed by trained technicians, taking full ESD precautions.
1 Year DiscTech Warranty
The product has a DiscTech warranty for the time period specified. View our limited warranty