# HDD Western Digital 18 TB 3.5" Serial ATA III Ultrastar DC HC550

**URL:** https://aio.lv/en/product--western-digital-0f38459--3547942
**Data updated:** 2025-12-29 13:31 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** 0F38459
**Warranty:** 5 Years
**Availability:** Available for order
**Price:** 780.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 645.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-0f38459--3547942

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Tomorrow | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

The Western Digital Ultrastar DC HC550 is an internal hard drive with a massive 18 TB capacity and a speed of 7200 RPM. It features a 512 MB buffer for efficient data processing and operates on a 3.5" form factor with a Serial ATA III interface, making it ideal for data centers and enterprise applications.

## Long description

The Western Digital Ultrastar DC HC550 is an enterprise-class 3.5" internal HDD offering 18 TB capacity, 7200 RPM spindle speed and a 512 MB buffer. Designed for cloud and hyperscale data centers, this drive uses HelioSeal technology on a 9-disk platform and integrates Energy-Assisted Magnetic Recording (EAMR) together with a Triple Stage Actuator (TSA) to increase areal density while maintaining reliability and performance.
Advantages
The Ultrastar DC HC550 delivers high storage density in a standard 3.5" SATA III form factor, enabling drop-in replacement for large-scale Big Data workloads. It provides a lower total cost of ownership through reduced idle power per terabyte and improved mean time between failures (MTBF). The combination of EAMR, TSA and helium-sealed mechanics yields higher areal density and optimized operational efficiency for data center deployments.
Suitable for
Cloud and hyperscale data center storage
Mass data archival and cold storage
Enterprise servers and storage arrays
Big Data workloads and object storage
Key specifications
Capacity: 18 TB (18,000 GB)
Form factor: 3.5"
Interface: Serial ATA III (SATA III)
Spindle speed: 7200 RPM
Cache: 512 MB
MTBF: 2,500,000 hours
Weight: 0.69 kg
How to use
Install the Ultrastar DC HC550 in a compatible 3.5" drive bay with a SATA III connection. Ensure the server or storage chassis supports helium-filled enterprise drives and follow your system vendor’s guidelines for mounting, power and cooling. Format the drive and configure RAID or the chosen storage software according to your data center architecture and workload requirements.
Usage recommendations
For optimal reliability and energy efficiency, deploy this HDD in data center environments with appropriate airflow and cooling, use it as part of tiered storage or large-capacity arrays, and monitor drive health through vendor-provided tools and system telemetry.

## Specifications

### Features

| Feature | Value |
|---|---|
| HDD capacity | 18000 GB |
| HDD size | 3.5 |
| HDD speed | 7200 |
| Mean time between failures (MTBF) | 2500000 h |
| Average latency | 4.16 ms |
| Start/stop cycles | 600000 |
| HDD interface transfer rate | 6 Gbit/s |
| Component for | Server/workstation |
| Workload rate limit | 550 TB/year |
| Interface | Serial ATA III |
| Type | HDD |
| Noise level (idle) | 2 dB |
| 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 |

### Weight & dimensions

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

### Power

| Feature | Value |
|---|---|
| Operating voltage | 5 V |
| Power consumption (idle) | 5.8 W |
| Power consumption (read) | 8.8 W |
| Power consumption (write) | 8.8 W |

### Packaging data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Packaging content

| Feature | Value |
|---|---|
| Manual | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84717050 |

## FAQ

### How much does the HDD Western Digital 18 TB Ultrastar DC HC550 cost, and is it available for purchase?

The price is 780.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 Tomorrow 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: Cash payment, 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 18 TB Ultrastar DC HC550 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 18 TB Ultrastar DC HC550?

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

https://aio.lv/img/cache/product/3547942/62634024_large.webp