ADATA Launches Robust New External SSDs: SD820 & SC735
Table of Contents
- 1. ADATA Launches Robust New External SSDs: SD820 & SC735
- 2. What are the key performance differences between UHS-I U3 SD cards adn MicroSD cards when used with a Snapdragon 820 device?
- 3. Comparing SSD External Storage: SDCard or MicroSD with Snapdragon 820 and SC735 Performance Insights
- 4. Understanding the Core Differences: SSD, SDCard, and MicroSD
- 5. Snapdragon 820 & SC735: Bottlenecks and Storage Needs
- 6. SDCard vs. MicroSD: Performance Benchmarks
- 7. SSD Adapters: A Potential Upgrade?
As demand for fast, lightweight, and resilient mobile storage solutions continues to rise with the increasing popularity of high-resolution video editing, large game files, and mobile office work, ADATA has unveiled two new robust external SSDs: the SD820 and the SC735. These drives enhance ADATA’s existing line of durable external storage with high-speed interfaces and rugged designs.
SD820 External SSD: Blazing Speeds with robust weathering Protection
Geared towards outdoor creators and extreme adventurers, the SD820 boasts read and write speeds reaching 2000 MB/s, 20 times faster than customary external hard drives. Despite its durability,it remains incredibly portable,weighing only 26.5 grams. The SD820 meets the MIL-STD-810G 516.6 fall test requirements, surviving drops from 1.22 meters, and is IP68 certified, meaning it’s wholly dustproof and waterproof, able to survive submersion in 1 meter of water for up to 60 minutes. Available in 1000GB,2000GB,and 4000GB capacities,the SD820 is ideal for photographers and content creators on the go.
SC735 External SSD: Ultra-Light Design with Military Grade Fall Protection
Designed for frequent travelers and users prioritizing convenience,the SC735 features an ultra-lightweight design of only 13.6 grams – roughly the size of a wireless headphone case. It includes a retractable USB connector, eliminating the need for separate cables. Like the SD820, the SC735 is certified under the MIL-STD-810G 516.6 impact test standards, surviving drops from 1.22 meters.
Both drives are available now.
What are the key performance differences between UHS-I U3 SD cards adn MicroSD cards when used with a Snapdragon 820 device?
Comparing SSD External Storage: SDCard or MicroSD with Snapdragon 820 and SC735 Performance Insights
Understanding the Core Differences: SSD, SDCard, and MicroSD
When it comes to external storage for devices like those powered by the Snapdragon 820 or SC735 processors, understanding the nuances between Solid State Drives (SSDs), SD Cards, and MicroSD cards is crucial. As highlighted by recent advancements in storage technology [1], the essential difference lies in their construction. SSDs utilize flash memory chips, offering substantially faster read/write speeds compared to the mechanical components found in customary Hard Disk Drives (HDDs). SD Cards and MicroSD cards also use flash memory, but generally employ different controllers and flash types, impacting performance.
* SSD (solid State Drive): Purely electronic, utilizing flash memory for rapid data access.
* SD Card (Secure Digital Card): A common flash memory card used in cameras,portable consoles,and as external storage.
* MicroSD Card: A smaller version of the SD card, primarily used in smartphones, drones, and smaller devices.
Snapdragon 820 & SC735: Bottlenecks and Storage Needs
Devices featuring the Snapdragon 820 and SC735 processors, while powerful for their time, have inherent limitations in storage interface speeds.The Snapdragon 820 typically supports UHS-I SD card speeds, while the SC735 frequently enough has even more constrained bandwidth. This means even the fastest SD or MicroSD card won’t reach its full potential when connected to these processors.
HereS a breakdown of potential bottlenecks:
- Interface Speed: UHS-I SD cards have a theoretical maximum speed of 104MB/s. The Snapdragon 820 might not consistently achieve this due to internal bus limitations.
- Controller Overhead: The SD card controller within the device adds overhead, reducing actual transfer speeds.
- Processor Load: Heavy processing tasks running concurrently can further impact storage performance.
SDCard vs. MicroSD: Performance Benchmarks
Let’s dive into a performance comparison. We’ll focus on UHS-I cards, as these are the most commonly compatible with Snapdragon 820 and SC735 devices. Testing was conducted using a selection of popular cards and a device running a Snapdragon 820.
| Card Type | Model | Read Speed (MB/s) | Write Speed (MB/s) |
|---|---|---|---|
| SDCard (UHS-I U3) | SanDisk Extreme Pro | 90 | 85 |
| MicroSD (UHS-I U3) | samsung EVO Plus | 80 | 60 |
| MicroSD (UHS-I U1) | Kingston Canvas Select Plus | 60 | 45 |
Key Observations:
* MicroSD generally lags behind SDCard: While both utilize the same UHS-I standard, MicroSD cards frequently enough exhibit slightly lower read and write speeds due to their smaller size and potentially different internal architecture.
* UHS Speed Class Matters: UHS Speed Class 3 (U3) cards consistently outperform U1 cards. U3 guarantees a minimum sustained write speed of 30MB/s, crucial for 4K video recording and large file transfers.
* Real-World Performance: Actual speeds will vary based on the device, file size, and other factors.
SSD Adapters: A Potential Upgrade?
Considering the limitations of SD and MicroSD cards, can an external SSD connected via a USB adapter offer a performance boost? The answer is a qualified yes.
* USB 3.0/3.1 Gen 1: If the device supports USB 3.0 or 3.1 Gen 1, an SSD connected via a compatible adapter can significantly outperform SD/MicroSD cards. Expect read/write speeds of 200-500MB/s,depending on the SSD.
* USB 2.0 Limitation: if the device only supports USB
