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header-product SSD disk Western Digital 3.84 TB U.3 PCI Express 4.0 Ultrastar DC SN655
3,319.49 €

SSD disk Western Digital 3.84 TB U.3 PCI Express 4.0 Ultrastar DC SN655

SSD disk Western Digital 3.84 TB Ultrastar DC SN655 Photo 1
SSD disk Western Digital 3.84 TB Ultrastar DC SN655 Photo 2
SSD disk Western Digital 3.84 TB Ultrastar DC SN655 Photo 3
SSD disk Western Digital 3.84 TB Ultrastar DC SN655 Photo 1
SSD disk Western Digital 3.84 TB Ultrastar DC SN655 Photo 2
SSD disk Western Digital 3.84 TB Ultrastar DC SN655 Photo 3
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SSD disk Western Digital 3.84 TB U.3 PCI Express 4.0 Ultrastar DC SN655

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SSD disk Western Digital 3.84 TB U.3 PCI Express 4.0 Ultrastar DC SN655

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Short description

The Western Digital Ultrastar DC SN655 SSD offers a capacity of 3.84 TB with a U.3 form factor. It features impressive read speeds of up to 6800 MB/s and write speeds of 2600 MB/s, making it ideal for high-performance server and workstation applications. Utilizing PCI Express 4.0 technology and TLC 3D NAND, this SSD ensures outstanding performance and reliability for demanding workloads.
Available at price 3,319.49 €: 5 pcs.
Total available for order: 10 pcs.
Warranty: 2 Years
SKU: 11363046
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
24.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
27.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.15 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
27.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
payment
Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Leasing for legal entities
Leasing for legal entities: from 115.52 euros per month
Available for private customers at price 3,498.49 €: 5 pcs.
Together cheaper
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Product information

Description

The Western Digital Ultrastar DC SN655 SSD (3.84 TB, U.3) is a high-capacity NVMe drive designed for cloud, scale-out and server environments that require low-latency access and large capacity for read-intensive workloads. Built on PCIe 4.0 with a next-generation NVMe 1.4b controller and TLC 3D NAND, this U.3 form-factor SSD delivers high sequential and random performance while integrating enterprise features such as dual-port redundancy, end-to-end data protection, and power-loss protection.

Advantages

This Ultrastar DC SN655 model provides high throughput and low latency—up to 6800 MB/s sequential read and 2600 MB/s sequential write—combined with enterprise-grade endurance and reliability (projected 2.5M MTBF and 1.0 DW/D warranty coverage). The U.3 form factor and support for U.2/U.3 backplanes enable straightforward integration into standard 2.5" server storage infrastructures, while dual-port failover and data-protection features improve availability for critical workloads.

Suitable for

  • Cloud and hyperscale storage systems
  • Big data analytics and data lakes handling large unstructured datasets
  • Machine learning and AI training pipelines requiring high IOPS and low latency
  • Enterprise servers and scale-out architectures with U.3/U.2 backplanes

Key specifications

  • Brand: Western Digital
  • Model: Ultrastar DC SN655 (MPN 0TS2467, EAN 0619659203153)
  • Form factor: U.3 (compatible with U.2/U.3 backplanes)
  • Capacity: 3.84 TB (3840 GB)
  • Interface: PCIe Generation 4.0, NVMe 1.4b
  • Max sequential read: up to 6800 MB/s
  • Max sequential write: up to 2600 MB/s
  • Weight: 0.1473 kg
  • Enterprise features: dual-port redundancy, end-to-end data protection, power-loss protection
  • Reliability: projected 2.5M MTBF, 1.0 DW/D endurance metric, 5-year limited warranty

How to use

Install the SSD in a compatible U.3 (or U.2 with adapter) backplane or slot on servers that support PCIe 4.0 for optimal performance. Ensure the server firmware and operating system NVMe drivers support NVMe 1.4b and PCIe Gen4. Configure the drive within the server or storage array according to your storage architecture (single-port or dual-port configurations) and follow standard procedures for filesystem creation, partitioning and any RAID or software-defined storage setups.

Usage recommendations

Deploy this 3.84 TB Ultrastar DC SN655 in read-intensive, capacity-driven environments such as big data, analytics and AI pipelines. For maximum reliability and availability, use dual-port configurations where supported, keep firmware up to date, and monitor drive health via vendor management tools.

Specifications

Hardware encryption:
Yes
Component for: What this product is used as a part of (component for).
Server/workstation
Memory type: Type of memory in the device e.g. DDR3, SRAM (Static RAM).
TLC 3D NAND
NVMe: NVM Express (NVMe) or Non-Volatile Memory Host Controller Interface Specification (NVMHCIS) is an open logical device interface specification for accessing non-volatile storage media attached via a PCI Express (PCIe) bus. NVM Express, as a logical device interface, has been designed to capitalize on the low latency and internal parallelism of solid-state storage devices.
Yes
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
PCI Express 4.0
SSD form factor: The size of the solid-state drive, given in inches
U.3
SSD capacity:
3840 GB
All features

Other features

Warranty period:
5 year(s)

Operational conditions

Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 85
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 70

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.1473 kg
Height: The measurement of the product from head to foot or from base to top.
14.9 mm
Depth: The distance from the front to the back of something.
100.3 mm
Width: The measurement or extent of something from side to side.
69.8 mm

Features

Server operating systems supported:
Yes
Linux operating systems supported: 8 RT. Linux (9.4, 9.5), Red Hat Enterprise Linux 5.0 (supported with a pre-built package); SUSE Linux (10.3, 11.0, 11, 11.1, 11.2), Fedora (9, 9.0, 10, 10.0, 11.0, 11, 12, 12.0), Ubuntu (8.04, 8.04.1, 8.04.2, 8.10, 9.04, 9.10, 10.04), Debian (5.0, 5.0.1, 5.0.2, 5.0.3)
Yes
Windows operating systems supported: Windows vesions wich can be used with the device.
Yes
Mean time between failures (MTBF): Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
2500000 h
Uncorrectable Bit Error Rate (UBER):
< 1 per 10^15 bits read
Random write (4KB):
112000 IOPS
Random read (4KB):
1000000 IOPS
Write speed: The speed at which a device can write data.
2600 MB/s
Read speed: The speed at which a device can read data.
6800 MB/s
Hardware encryption:
Yes
Component for: What this product is used as a part of (component for).
Server/workstation
Memory type: Type of memory in the device e.g. DDR3, SRAM (Static RAM).
TLC 3D NAND
NVMe version:
1.4
NVMe: NVM Express (NVMe) or Non-Volatile Memory Host Controller Interface Specification (NVMHCIS) is an open logical device interface specification for accessing non-volatile storage media attached via a PCI Express (PCIe) bus. NVM Express, as a logical device interface, has been designed to capitalize on the low latency and internal parallelism of solid-state storage devices.
Yes
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
PCI Express 4.0
SSD form factor: The size of the solid-state drive, given in inches
U.3
SSD capacity:
3840 GB

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
WH357 5 10.08.2026 Best delivery
3,498.49 €
Available only for legal entities
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WH109 5 24.08.2026
3,319.49 € Best price
3,498.49 €
Stock: 5
Delivery Date: 10.08.2026 Best delivery
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Delivery Date: 24.08.2026
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Customer reviews

Customer questions

FAQ

How much does the SSD disk Western Digital 3.84 TB Ultrastar DC SN655 cost, and is it available for purchase?

The price is 3,319.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 24.08.2026 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: hardware encryption, component for, memory type, nvme, interface, ssd form factor, ssd capacity, 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 3.84 TB Ultrastar DC SN655?

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.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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