# Internal Hard Drive Western Digital Ultrastar DC HC550 18 TB 3.5" SAS 7200 RPM 512 MB

**URL:** https://aio.lv/en/product--western-digital-0f38353--3525610
**Data updated:** 2026-02-07 21:02 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** 0F38353
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 868.99 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 718.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-0f38353--3525610

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.79 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

Internal hard drive Western Digital Ultrastar DC HC550 offers 18 TB capacity in a 3.5" form factor with a 7200 RPM spindle speed and 512 MB cache. It uses a SAS interface for high-performance data transfer and has an MTBF of 2,500,000 hours. Designed for data centers and enterprise storage, it delivers reliable, high-density storage for servers, backup systems and large-scale archives.

## Long description

Western Digital Ultrastar DC HC550 is an internal 3.5" enterprise hard drive with 18 TB capacity, a 7200 RPM spindle speed and a 512 MB cache. The drive uses a SAS interface and is engineered for data center and server environments where high-density, reliable storage is required. It has an MTBF of 2,500,000 hours and is suitable for continuous operation in large-scale storage, backup and archive systems.
Advantages
The Ultrastar DC HC550 provides a large 18 TB capacity in a standard 3.5" form factor, combined with a 7200 RPM rotational speed and 512 MB cache to support sustained data throughput. The SAS interface enables high-performance, enterprise-class connectivity, and the specified MTBF indicates design for long-term reliability in always-on environments. The drive's physical dimensions and weight allow integration into standard server and storage chassis.
Suitable for
Data center storage arrays and SAN/NAS systems
Enterprise servers and virtualization hosts
Backup solutions and long-term archival storage
Key specifications
Capacity: 18 TB (18,000 GB)
Form factor: 3.5 inch
Interface: SAS (Serial Attached SCSI)
Rotational speed: 7200 RPM
Cache: 512 MB
Average seek time: 4.16 ms
Mean time between failures (MTBF): 2,500,000 hours
Weight: 0.69 kg
How to use
Install the Ultrastar DC HC550 into a compatible 3.5" drive bay or tray in your server or storage enclosure. Use the SAS backplane or appropriate SAS cables and host adapter to connect the drive to the system. Initialize and format the drive according to your operating system or storage controller requirements, and configure RAID or other redundancy features as needed for your deployment. Follow the server or storage chassis manufacturer instructions for mounting and securing the drive.
Usage recommendations
For optimal performance and longevity, operate the drive within the enclosure's recommended ambient temperature and vibration limits, use enterprise-class RAID controllers or storage platforms, and implement regular backups and monitoring. Avoid exposing the drive to rapid power cycling or uncontrolled mechanical shocks during installation.

## 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 | 12 Gbit/s |
| Component for | Server/workstation |
| Workload rate limit | 550 TB/year |
| Interface | SAS |
| 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) | 5.6 W |
| Power consumption (read) | 6.5 W |
| Power consumption (write) | 6.5 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 Internal HDD Western Digital Ultrastar DC HC550 18 TB cost, and is it available for purchase?

The price is 868.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 06.08.2026 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 Internal HDD Western Digital Ultrastar DC HC550 18 TB 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 Internal HDD Western Digital Ultrastar DC HC550 18 TB?

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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