Product information
The WD Ultrastar DC HC555 0B48724 is a highly reliable enterprise hard drive with 20 TB capacity in a 3.5-inch form factor for data centers, servers, NAS, and storage arrays. It offers a speed of 7,200 RPM, a 512 MB cache, and a maximum sustained transfer rate of up to 285 MB/s via a SATA 6 Gb/s interface.
As an enterprise drive in the Ultrastar DC HC555 series, it is designed for 24x7 operation, supports workloads of up to 550 TB per year, and features an MTBF of 2.5 million hours. The ePMR technology (Energy-assisted Perpendicular Magnetic Recording) enables high capacities while maintaining high reliability. It is suitable for bulk data applications, hyperscale storage, replication, RAID systems, and other demanding enterprise environments.
Product Series: WD Ultrastar DC HC555 Enterprise HDD
Model: Ultrastar DC HC555 20TB SATA
Order Number: 0B48724
GTIN/EAN: 0829686009516
Product Type: Enterprise 3.5″ SATA HDD, 7,200 RPM, 512e, ePMR
Capacity:
- Unformatted: 20 TB (20,000,000,000,000 bytes)
- Formattable: approx. 18.19 TB (depending on the file system)
Performance:
- Spindle Speed: 7,200 RPM
- Interface: SATA 6 Gb/s (compatible with 3 Gb/s, 1.5 Gb/s)
- Max. Sustained Transfer Rate (OD): 285 MB/s
- Average Latency: 4.16 ms
- Cache: 512 MB
Reliability:
- MTBF: 2,500,000 hours
- Workload Rate Limit: 550 TB/year
- AFR (Annualized Failure Rate): 0.35% (estimated)
- Error Correction: On-the-fly ECC, Rotational Vibration Sensors, ePMR
Physical Specifications:
- Form Factor: 3.5″ (147.07 mm × 101.6 mm × 26.11 mm)
- Weight: approx. 690 g
- Sectors per Track: 512e (Advanced Format), 4Kn support
- Hot-Swap: Yes (depending on enclosure/backplane)
- Recording Technology: ePMR (Energy-assisted Perpendicular Magnetic Recording)
Power Supply:
- Voltage: +5 V, +12 V
- Power Consumption (Operating, typical): approx. 5.3 W (idle), 6.4 W (average)
- Power Consumption (max.): approx. 13–15 W (at startup)
Environment:
- Operating Temperature: 5 °C to 60 °C
- Storage Temperature: -40 °C to 70 °C
- Relative Humidity: 5% to 90%, non-condensing
- Shock (Operating, 2 ms): 50 G
- Shock (Non-Operating, 2 ms): 250 G
- Vibration (Operating, 2–500 Hz): 0.67 G
- Vibration (Non-Operating, 2–500 Hz): 1.04 G
Warranty:
- Manufacturer Warranty: 5 years (limited, depending on sales region)
The WD Ultrastar DC HC555 0B48724 is a highly reliable enterprise hard drive with 20 TB capacity in a 3.5-inch form factor for data centers, servers, NAS, and storage arrays. It offers a speed of 7,200 RPM, a 512 MB cache, and a maximum sustained transfer rate of up to 285 MB/s via a SATA 6 Gb/s interface.
As an enterprise drive in the Ultrastar DC HC555 series, it is designed for 24x7 operation, supports workloads of up to 550 TB per year, and features an MTBF of 2.5 million hours. The ePMR technology (Energy-assisted Perpendicular Magnetic Recording) enables high capacities while maintaining high reliability. It is suitable for bulk data applications, hyperscale storage, replication, RAID systems, and other demanding enterprise environments.
Product Series: WD Ultrastar DC HC555 Enterprise HDD
Model: Ultrastar DC HC555 20TB SATA
Order Number: 0B48724
GTIN/EAN: 0829686009516
Product Type: Enterprise 3.5″ SATA HDD, 7,200 RPM, 512e, ePMR
Capacity:
- Unformatted: 20 TB (20,000,000,000,000 bytes)
- Formattable: approx. 18.19 TB (depending on the file system)
Performance:
- Spindle Speed: 7,200 RPM
- Interface: SATA 6 Gb/s (compatible with 3 Gb/s, 1.5 Gb/s)
- Max. Sustained Transfer Rate (OD): 285 MB/s
- Average Latency: 4.16 ms
- Cache: 512 MB
Reliability:
- MTBF: 2,500,000 hours
- Workload Rate Limit: 550 TB/year
- AFR (Annualized Failure Rate): 0.35% (estimated)
- Error Correction: On-the-fly ECC, Rotational Vibration Sensors, ePMR
Physical Specifications:
- Form Factor: 3.5″ (147.07 mm × 101.6 mm × 26.11 mm)
- Weight: approx. 690 g
- Sectors per Track: 512e (Advanced Format), 4Kn support
- Hot-Swap: Yes (depending on enclosure/backplane)
- Recording Technology: ePMR (Energy-assisted Perpendicular Magnetic Recording)
Power Supply:
- Voltage: +5 V, +12 V
- Power Consumption (Operating, typical): approx. 5.3 W (idle), 6.4 W (average)
- Power Consumption (max.): approx. 13–15 W (at startup)
Environment:
- Operating Temperature: 5 °C to 60 °C
- Storage Temperature: -40 °C to 70 °C
- Relative Humidity: 5% to 90%, non-condensing
- Shock (Operating, 2 ms): 50 G
- Shock (Non-Operating, 2 ms): 250 G
- Vibration (Operating, 2–500 Hz): 0.67 G
- Vibration (Non-Operating, 2–500 Hz): 1.04 G
Warranty:
- Manufacturer Warranty: 5 years (limited, depending on sales region)
WD Ultrastar DC HC555 0B48724 – Enterprise 20 TB 3.5″ SATA HDD, 7,200 RPM, 512 MB Cache, ePMR, 550 TB/Year Workload
- Regular price
- 1.009,99 €
- Sale price
- 1.009,99 €
- Regular price
-
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