# Western Digital Ultrastar DC SN861 6.4 TB Enterprise SSD, U.2, PCIe 5.0 NVMe

**URL:** https://aio.lv/en/product--western-digital-0ts2533--12520013
**Data updated:** 2026-06-17 08:21 (EEST)
**Category:** Solid State Drives (SSD)
**Manufacturer:** Western Digital
**Manufacturer code:** 0TS2533
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8 871.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 7 332.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-0ts2533--12520013

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Western Digital Ultrastar DC SN861 is a high-performance enterprise-grade SSD designed for server and workstation environments. It features a 6.4 TB capacity, U.2 form factor, and utilizes the PCIe 5.0 NVMe interface. With read speeds up to 13700 MB/s and write speeds up to 7500 MB/s, this drive provides exceptional data throughput and reliability for demanding data center workloads and intensive computing applications.

## Long description

The Western Digital Ultrastar DC SN861 6.4 TB Enterprise SSD is a high-performance storage solution engineered for demanding server and workstation environments. Utilizing the advanced PCIe 5.0 NVMe interface, this drive delivers exceptional data throughput with read speeds up to 13700 MB/s and write speeds up to 7500 MB/s. Designed for mission-critical applications, it provides the reliability, low latency, and high IOPS required for modern data centers and intensive computing tasks.
Advantages
This enterprise-grade SSD offers significant benefits for data-heavy operations by maximizing performance per watt, which helps reduce overall operational costs. Its architecture is specifically optimized for AI and machine learning workloads, providing the high bandwidth and low latency necessary for rapid data processing. The drive supports modern standards including NVMe 2.0 and OCP 2.0, ensuring compatibility with future-ready data infrastructures. Furthermore, it incorporates robust enterprise features such as hardware encryption, power loss protection, and end-to-end data path protection to maintain data integrity and security under heavy, mixed-workload conditions.
Suitable for
AI and machine learning model training
Hyperscale and cloud data center storage
High-performance computing workstations
Mission-critical enterprise database management
Real-time data analytics and processing
This drive may not be suitable for standard consumer desktop computers or laptops, as it requires a U.2 interface and PCIe 5.0 support, which are typically found only in professional server-grade hardware. Additionally, it is not intended for general-purpose home storage where the high cost and specialized power requirements of enterprise-grade equipment are not justified.
Key specifications
Capacity: 6.4 TB
Form factor: U.2
Interface: PCIe 5.0 NVMe
Read speed: Up to 13700 MB/s
Write speed: Up to 7500 MB/s
Support: NVMe 2.0 and OCP 2.0
Security: Hardware encryption
To use the Western Digital Ultrastar DC SN861, ensure your server or workstation motherboard supports the U.2 form factor and the PCIe 5.0 NVMe protocol. The drive should be installed into a compatible drive bay with adequate airflow to maintain optimal operating temperatures. Once physically installed, the operating system or RAID controller will recognize the drive, allowing for initialization and formatting according to your specific storage configuration requirements.
What to consider before purchase
Verify that your server hardware supports U.2 connections and PCIe 5.0 lanes.
Ensure your system's power supply and cooling capacity meet the requirements for enterprise-grade NVMe drives.
Check for compatibility with your existing storage management software and NVMe drivers.
For optimal performance and longevity, ensure that your system firmware is updated to the latest version and that the drive is utilized within a well-ventilated server chassis to maintain consistent thermal performance during intensive data operations.

## Specifications

### Features

| Feature | Value |
|---|---|
| SSD capacity | 6400 GB |
| SSD form factor | U.2 |
| Read speed | 13700 MB/s |
| Write speed | 7500 MB/s |
| Mean time between failures (MTBF) | 2500000 h |
| Random write (4KB) | 800000 IOPS |
| Random read (4KB) | 3300000 IOPS |
| Read latency | 65 µs |
| Write latency | 8 µs |
| Hardware encryption | Yes |
| Component for | Server/workstation |
| NVMe | Yes |
| NVMe version | 2.0 |
| Interface | PCI Express 5.0 |
| Uncorrectable Bit Error Rate (UBER) | \< 1 per 10^17 bits read |
| Drive writes per day (DWPD) | 3 |

### Other features

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 15 mm |
| Width | 69.8 mm |
| Depth | 100.4 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (idle) | -5 W |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |

## FAQ

### How much does the Western Digital Ultrastar DC SN861 6.4 TB Enterprise SSD cost, and is it available for purchase?

The price is 8,871.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 08.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### 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: ssd form factor, ssd capacity, read speed, write speed, 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 Western Digital Ultrastar DC SN861 6.4 TB Enterprise SSD?

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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