# SSD Western Digital Ultrastar DC SN861 1.6 TB U.2 PCIe 5.0 Read 13700 MB/s Write 3600 MB/s

**URL:** https://aio.lv/en/product--sandisk-0ts2531--11452160
**Data updated:** 2025-12-30 21:22 (EET)
**Category:** Solid State Drives (SSD)
**Manufacturer:** SANDISK
**Manufacturer code:** 0TS2531
**EAN:** 0619659211516
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 632.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 1 349.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sandisk-0ts2531--11452160

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Western Digital Ultrastar DC SN861 is a high-performance SSD designed for servers and workstations. With a capacity of 1.6 TB, it offers exceptional read speeds of up to 13700 MB/s and write speeds of 3600 MB/s. This U.2 PCIe 5.0 SSD is ideal for demanding applications requiring fast data access and reliability.

## Long description

The Western Digital Ultrastar DC SN861 1.6 TB U.2 PCIe 5.0 is a high-performance enterprise SSD designed for servers, hyperscale and cloud data centers, and compute-intensive workstations. This U.2 form-factor drive delivers PCIe Gen5 read speeds up to 13,700 MB/s and write speeds up to 3,600 MB/s, with a 1.6 TB capacity and enterprise-grade features for data integrity and reliability.
Advantages
The Ultrastar DC SN861 combines very high random read performance and low latency with optimized power efficiency to maximize IOPS per watt. It supports NVMe 2.02 and OCP 2.0, offers power-loss protection and end-to-end data path protection, and includes TCG security/encryption. Available endurance options (1 and 3 DWPD) and a limited five-year warranty make it suitable for mission-critical workloads.
Suitable for
AI and machine learning training and inference
Hyperscale and cloud storage nodes
High-performance database and transaction systems
Virtualization and mixed enterprise workloads
Key specifications
Form factor: U.2
Interface: PCIe Gen5 (NVMe) — NVMe 2.02 compatible
Capacity: 1.6 TB (1600 GB)
Sequential read speed: up to 13,700 MB/s
Sequential write speed: up to 3,600 MB/s
Endurance: options include 1 & 3 DWPD (manufacturer specification)
Enterprise features: Power Loss Protection, End-to-End Data Path Protection, TCG security/encryption
Warranty: 5-year limited (manufacturer)
How to use
Install the SSD into a compatible U.2 slot or adapter on a server or workstation that supports PCIe Gen5. Ensure the system firmware and NVMe driver support NVMe 2.02 for full feature compatibility. Configure the drive within your operating system or storage controller, provision partitions or namespaces as required, and integrate into your existing storage pool or application workload. Monitor SMART and telemetry metrics to track drive health and performance over time.
Usage recommendations
For optimal performance in AI, machine learning, and mixed enterprise workloads, pair the Ultrastar DC SN861 with platforms that support PCIe Gen5 and NVMe 2.02, follow vendor guidelines for thermal management and power provisioning, and select the endurance (DWPD) option that matches your write-intensity requirements.

## 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 Western Digital Ultrastar DC SN861 1.6 TB U.2 PCIe 5.0 cost, and is it available for purchase?

The price is 1,632.49 € (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 06.07.2026 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 SANDISK 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 SANDISK 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 Western Digital Ultrastar DC SN861 1.6 TB U.2 PCIe 5.0?

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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