# HDD Western Digital 20 TB 3.5" Serial ATA III Ultrastar DC HC555

**URL:** https://aio.lv/en/product--western-digital-0b48724--11219396
**Data updated:** 2026-01-19 19:09 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** 0B48724
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 976.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 807.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-0b48724--11219396

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Western Digital Ultrastar DC HC555 is a high-capacity internal hard drive with 20 TB storage, 7200 RPM speed, and a 512 MB buffer. Designed for data-intensive applications, it offers reliable performance and durability. The 3.5" form factor and Serial ATA III interface ensure compatibility with a wide range of systems, making it ideal for enterprise storage solutions.

## Long description

The Western Digital Ultrastar DC HC555 is a 3.5" internal hard drive offering 20 TB of storage in a Serial ATA III form factor. Designed for continuous, multi-user data center environments, it combines 7200 RPM spindle speed, a 512 MB buffer, and enterprise-class design elements to support data-intensive workloads with proven reliability.
Advantages
This drive uses energy-assisted perpendicular magnetic recording (ePMR) and a Triple-Stage Actuator (TSA) to increase areal density and maintain precise head control, enabling high capacity with low power consumption. HelioSeal® helium sealing reduces internal turbulence for improved power efficiency. Built on a platform deployed in thousands of data centers, the Ultrastar DC HC555 offers field-proven reliability and a projected MTBF of 2.5 million hours, plus sensors and dynamic fly height technology to mitigate vibration and shock.
Suitable for
Enterprise-scale archival and nearline storage
High-density server and storage arrays
Backup and disaster recovery repositories
Multi-user data center workloads and cold storage
Key specifications
Capacity: 20 TB (20,000 GB)
Form factor: 3.5 inch
Interface: Serial ATA III (SATA 6 Gb/s)
Rotational speed: 7200 RPM
Cache: 512 MB buffer
MTBF: 2,500,000 hours (projected)
Weight: 0.69 kg
How to use
Install the Ultrastar DC HC555 into a compatible 3.5" drive bay or tray and connect it to a SATA III interface using an appropriate data and power cable. Configure the drive within your operating system or storage controller according to your server or array vendor guidelines. For RAID or multi-drive configurations, follow the controller manufacturer's recommendations for initialization, formatting, and rebuild procedures.
Usage recommendations
Use this drive in systems with adequate cooling and vibration control, and ensure firmware and storage controller compatibility before large-scale deployment. For optimal longevity in data center environments, monitor drive health via SMART and adhere to the host system's environmental and power specifications.

## Specifications

### Features

| Feature | Value |
|---|---|
| HDD capacity | 20000 GB |
| HDD size | 3.5 |
| HDD speed | 7200 |
| Mean time between failures (MTBF) | 2500000 h |
| Average latency | 4.16 ms |
| Start/stop cycles | 600000 |
| Hot-swap | No |
| HDD interface transfer rate | 6 Gbit/s |
| HDD sustained transfer rate | 272 MiB/s |
| Component for | Server/workstation |
| HDD average transfer rate | 285 MB/s |
| Interface | Serial ATA III |
| Type | HDD |
| Storage drive buffer size | 512 MB |
| 24/7 operation | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 5 - 60 |
| Operating shock | 50 G |
| Non-operating shock | 250 G |
| Non-operating vibration | 1.04 G |
| Operating vibration | 0.67 G |

### Other features

| Feature | Value |
|---|---|
| Warranty period | 5 year(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.69 kg |
| Height | 26.1 mm |
| Width | 101.6 mm |
| Depth | 147 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 6.4 W |
| Operating voltage | 5 V |
| Power consumption (idle) | 5.3 W |

## FAQ

### How much does the HDD Western Digital 20 TB Ultrastar DC HC555 cost, and is it available for purchase?

The price is 976.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 97 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can HDD Western Digital 20 TB Ultrastar DC HC555 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Western Digital products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Western Digital service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: hdd capacity, hdd size, hdd speed, mean time between failures (mtbf), weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for HDD Western Digital 20 TB Ultrastar DC HC555?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

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