# SSD disk Western Digital 1.6 TB U.2 PCI Express 5.0 NVMe Ultrastar DC SN861

**URL:** https://aio.lv/en/product--western-digital-0ts2531--11393809
**Data updated:** 2025-12-30 21:14 (EET)
**Category:** Solid State Drives (SSD)
**Manufacturer:** Western Digital
**Manufacturer code:** 0TS2531
**EAN:** 619659211516
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 800.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 1 488.01 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--western-digital-0ts2531--11393809

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Western Digital Ultrastar DC SN861 is a high-performance SSD with a capacity of 1.6 TB. It features a U.2 form factor and utilizes PCI Express 5.0 NVMe technology, providing exceptional read speeds of up to 13700 MB/s and write speeds of 3600 MB/s. Ideal for servers and workstations, this SSD ensures fast data access and reliability for demanding applications.

## Long description

The Western Digital Ultrastar DC SN861 is a high-performance U.2 NVMe SSD with a 1.6 TB capacity and PCIe Gen5 interface. Engineered for data centers, hyperscale and cloud environments, it delivers PCIe 5.0 class read/write performance, low latency and power-efficient operation. The drive supports enterprise NVMe features and is intended for compute-intensive workloads such as AI and machine learning.
Advantages
The Ultrastar DC SN861 provides PCIe Gen5 throughput for accelerated random and sequential operations, high read speeds up to 13700 MB/s and write speeds up to 3600 MB/s, and capacities suitable for server deployments. It is optimized for performance per watt to reduce operational power costs and includes enterprise-grade features for data integrity and security.
Suitable for
AI inference and training nodes
Machine learning workloads and analytics
Hyperscale and cloud storage servers
Enterprise databases and virtualized environments
High-performance compute and I/O-intensive applications
Key specifications
Form factor: U.2
Interface: PCIe 5.0 (NVMe)
Capacity: 1.6 TB (1600 GB)
Maximum read speed: up to 13700 MB/s
Maximum write speed: up to 3600 MB/s
Enterprise features: Power Loss Protection, End-to-End Data Path Protection, TCG security/encryption
How to use
Install the Ultrastar DC SN861 into a compatible U.2 slot or drive bay on a server or workstation with PCIe Gen5 support. Ensure the system firmware and NVMe driver support the drive and NVMe 2.0/2.02 features where applicable. Configure the drive in the operating system or storage controller, format as required, and deploy it for your target workloads such as AI training, database storage or virtual machines.
Usage recommendations
For optimal results, use the SSD in systems with PCIe Gen5 support and up-to-date firmware and drivers; enable available enterprise features such as power-loss protection and encryption according to your data integrity and security policies. Monitor drive health and performance within your data center management tools to maintain consistent QoS under heavy workloads.

## Specifications

### Features

| Feature | Value |
|---|---|
| SSD capacity | 1600 GB |
| SSD form factor | U.2 |
| Read speed | 13700 MB/s |
| Write speed | 3600 MB/s |
| Mean time between failures (MTBF) | 2500000 h |
| Random write (4KB) | 350000 IOPS |
| Random read (4KB) | 2100000 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 SSD disk Western Digital 1.6 TB Ultrastar DC SN861 cost, and is it available for purchase?

The price is 1,800.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 16.07.2026 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 SSD disk Western Digital 1.6 TB Ultrastar DC SN861 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: 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 SSD disk Western Digital 1.6 TB Ultrastar DC SN861?

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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