Comparing: SanDisk Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB vs Western Digital PC SN740 512GB
In this comparison, we analyze two Disks: SanDisk Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB and Western Digital PC SN740 512GB, using synthetic benchmark tests to evaluate their overall performance. This side-by-side comparison helps users understand which hardware delivers better value, speed, and efficiency based on standardized testing. Whether you're building a new system or upgrading an existing one, this benchmark-driven evaluation offers valuable insights to guide your decision.

SanDisk Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB
Type: | Disks |
---|---|
Model: | Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB |
Capacity: | 128GB |
Interface: | USB Type-A 3.1 Gen 1 & USB Type-C 3.1 Gen 1 |

Western Digital PC SN740 512GB
Type: | Disks |
---|---|
Model: | PC SN740 512GB |
Capacity: | 512GB |
Interface: | PCIe 4.0 x4 |
Specification Comparison Table
This specification comparison presents technical details of several devices or components to help you understand the key differences between each option. Use this table as a reference to determine which device best suits your needs.
Specification | SanDisk Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB | Western Digital PC SN740 512GB |
---|---|---|
Brand | SanDisk | Western Digital |
Format | USB FlashDrive | SSD M.2 NVMe 2280 |
Capacity | 128GB | 512GB |
Interface | USB Type-A 3.1 Gen 1 & USB Type-C 3.1 Gen 1 | PCIe 4.0 x4 |
Submission Comparison Table
This submission comparison table displays the number and details of benchmark data submissions from various devices or components. This information helps you understand the performance based on the benchmarks that have been tested, as well as providing an overview of the consistency and popularity of the available benchmark results.
No. | Benchmark Software | SanDisk Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB | Western Digital PC SN740 512GB |
---|---|---|---|
1 | AS-SSD |
Read: 147.18 MB/s Write: 33.75 MB/s |
Read: 3795.33 MB/s Write: 1879.37 MB/s |
2 | ATTO Disk Benchmark - 64M |
Read: 82.05 MB/s Write: 23.02 MB/s |
Read: 4720.00 MB/s Write: 3670.00 MB/s |
3 | Cross Platform Disk Test |
Read: 143.66 MB/s Write: 33.66 MB/s |
Read: 3410.00 MB/s Write: 1550.00 MB/s |
4 | CrystalDiskMark |
Read: 155.93 MB/s Write: 74.86 MB/s |
Read: 3913.58 MB/s Write: 3453.18 MB/s |
Submission Comparison Chart
This chart visualizes the benchmark scores comparison between two hardware devices based on submitted data.
Media Gallery
A collection of photos of tested hardware. These images can help you identify the physical form, model, and variant of the hardware in question. These photos are from our own documentation, and if they are not available we may not be able to document them.
About Hardware SanDisk Ultra Dual Drive Go OTG USB Type-C USB 3.1 128GB
The SanDisk Ultra Dual Drive Go 128GB is a versatile OTG flash drive with USB Type-C and USB Type-A support, enabling easy data transfer between devices such as smartphones, tablets and laptops. The flash drive offers transfer speeds of up to 150MB/s, making it ideal for fast and efficient transfer of large files.
In tests conducted using the Lenovo IdeaPad Slim 3i 14ITL6 with 12GB DDR4 dual channel RAM and Windows 11 22H2 operating system, as well as connectivity via USB 3.1 Gen 1 port, the device performed quite well under real-world usage conditions.
Test results through CrystalDiskMark recorded a read speed of 155.93 MB/s and a write speed of 74.86 MB/s. Meanwhile, through ATTO Disk Benchmark (64M test), the device recorded a read speed of 82.05 MB/s and a write speed of 23.02 MB/s. Although it does not touch the maximum theoretical limit, this performance is perfectly sufficient for daily needs such as transferring documents, photos, and medium-sized videos.
With its compact design and dual connectors, the SanDisk Ultra Dual Drive Go is an efficient and practical portable storage solution, perfect for cross-device users who need speed and flexibility.
Device Test:
Device: Lenovo IdeaPad Slim 3i 14ITL6
RAM: 12GB DDR4 3200MHz Dual Channel (8+4)
OS: Windows 11 22H2
USB: USB 3.1 Gen 1
Sunday, 29 May 2022 04:57:37 | Update: 1 month ago
About Hardware Western Digital PC SN740 512GB
The Western Digital PC SN740 is a high-performance NVMe SSD specifically designed to meet the needs of modern computing, especially in ultrabooks, business laptops and other compact devices. It features a PCIe Gen4 x4 interface and NVMe 1.4 protocol, which enables extremely fast read and write speeds, making it an ideal storage solution for intensive multitasking, big data processing, and a responsive and efficient computing experience.
The SN740 comes in various capacities ranging from 256GB, 512GB, 1TB, to 2TB, providing flexibility for users with different storage needs. Built with Western Digital 3D NAND technology, the SSD offers not only high performance, but also excellent power efficiency and long-term durability. Its availability in two form factors, M.2 2230 and M.2 2280, makes it highly compatible with many of the latest devices, including thin laptops and small industrial systems.
In a real-world test using an Acer Aspire 5 A515-58P laptop equipped with an Intel Core i5-1335U processor, 8GB LPDDR5 RAM and running Windows 11 operating system, the SSD ran on PCIe Gen3 x4 mode due to laptop slot limitations. Despite not running at full PCIe Gen4 speed, the benchmark results still showed excellent performance. Tests with CrystalDiskMark recorded read speeds of up to 3913.58 MB/s and write speeds of 3453.18 MB/s, while AS-SSD Benchmark recorded read speeds of 3795.33 MB/s and write speeds of 1879.37 MB/s. These numbers show that even on a PCIe Gen3 interface, the WD SN740 still offers premium performance that can compete with other high-end SSDs.
In addition to performance, the Western Digital SN740 also features enhanced security and power efficiency, making it a great choice for mobile professionals, software developers, and general users who desire fast and durable storage. With the combination of high data transfer speeds, compact design and Western Digital's brand reputation for reliability, this SSD is one of the best-in-class choices for storage upgrades on modern devices.
Device test (testbed):
Device: Acer Aspire 5 A515-58P
NVMe Capacity: 512GB
PCIe: Gen3 x4 (for run this NVMe)
CPU: i5-1335U
RAM: 8GB LPDDR5
OS: Windows 11
Tuesday, 15 August 2023 13:16:33 | Update: 1 month ago