Transcend
Transcend microSDXC 340S Ultra Performance Memory Card | A2 | UHS-I U3 | V30
Transcend microSDXC 340S Ultra Performance Memory Card | A2 | UHS-I U3 | V30
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The Transcend microSDXC 340S Ultra Performance memory card is designed for mobile devices, handheld game consoles, action cameras and drone cameras. Built around the A2 Application Performance Class, it delivers improved random read/write performance for applications that frequently access small amounts of data, helping support faster app launches and responsive mobile storage.
Available in capacities from 64GB to 512GB, the microSDXC 340S combines UHS-I U3, Class 10 and V30 speed classifications with 3D NAND flash technology. Depending on capacity, sequential read speeds reach up to 160MB/s, while sequential write speeds reach up to 125MB/s.
Key Features
A2 Application Performance Class
The Transcend microSDXC 340S complies with the A2 specification, providing minimum random performance of:
- Random Read: 4,000 IOPS
- Random Write: 2,000 IOPS
- Sustained Sequential Speed: At least 10MB/s
A2 performance is designed for mobile applications and workloads that require frequent random data access. For optimal A2 performance, the host device should support SD 6.0 or later.
Fast UHS-I Performance
The microSDXC 340S supports UHS-I U3, Class 10 and V30 speed standards. Sequential performance varies by capacity, with speeds reaching up to 160MB/s read and 125MB/s write under the specified testing conditions.
| Capacity | Sequential Read | Sequential Write |
|---|---|---|
| 512GB | Up to 160MB/s | Up to 125MB/s |
| 256GB | Up to 160MB/s | Up to 125MB/s |
| 128GB | Up to 160MB/s | Up to 90MB/s |
| 64GB | Up to 160MB/s | Up to 80MB/s |
Speeds are based on internal testing and may vary depending on host hardware, software, usage and storage capacity.
Ideal for 4K Video and Gaming
With U3 and V30 speed classifications, the microSDXC 340S is designed for applications such as 4K Ultra HD video recording, mobile gaming and other workloads requiring sustained storage performance.
Large Storage Capacity
The series is available in:
- 64GB
- 128GB
- 256GB
- 512GB
The larger capacities provide additional space for applications, games, photos, videos and other digital files.
Built for Challenging Conditions
Transcend's microSD memory cards are tested for resistance against:
- Temperature
- Water
- Shock
- X-rays
- Static electricity
The operating temperature range is -25°C to 85°C, supporting use across a wide range of environmental conditions.
3D NAND Flash
The microSDXC 340S uses 3D NAND flash technology for storage.
RecoveRx Data Recovery Software
Transcend provides RecoveRx, a free data recovery utility designed to help recover accidentally deleted digital files, including photos, documents, music and videos.
SD SMART Toolbox
The SD SMART Toolbox allows users to monitor memory card information, including basic card details, health status and usage capacity.
Technical Specifications
| Specification | Details |
|---|---|
| Product Series | Transcend microSDXC 340S |
| Product Type | Ultra Performance microSD Memory Card |
| Form Factor | microSDXC |
| Capacity | 64GB / 128GB / 256GB / 512GB |
| Flash Type | 3D NAND Flash |
| Speed Class | UHS-I U3 / Class 10 / V30 / A2 |
| Random Read | Minimum 4,000 IOPS |
| Random Write | Minimum 2,000 IOPS |
| Sequential Read | Up to 160MB/s |
| Sequential Write | Up to 125MB/s |
| Operating Temperature | -25°C to 85°C |
| Operating Voltage | 2.7V to 3.6V |
| Dimensions | 11 × 15 × 1 mm |
| Weight | 0.4g |
| Insertion/Removal Cycles | 10,000 |
| Warranty | 2-Year Limited Warranty |
Compatibility
The Transcend microSDXC 340S is designed for use with compatible:
- Smartphones
- Handheld game consoles
- Action cameras
- Drone cameras
- Mobile devices
- Other compatible microSDXC devices
For optimal A2 application performance, the device should support the SD 6.0 specification or later.
Performance Notes
The advertised speeds are based on internal testing. Advanced technology is used to achieve read/write performance beyond the standard UHS-I 104MB/s limit.
Full specified performance is achieved only when paired with a Transcend HUB5C card reader with the latest firmware update.
Actual performance may vary depending on host hardware, software, usage conditions and storage capacity.
Certifications & Warranty
The Transcend microSDXC 340S carries:
CE / UKCA / FCC / EAC / RCM
The memory card is backed by a 5-Year Limited Warranty.
Ideal For
- Smartphones
- Handheld gaming consoles
- Action cameras
- Drone cameras
- 4K Ultra HD video recording
- Mobile gaming
- App storage
- Photos and videos
- Portable digital storage
- High-performance microSDXC applications
Transcend microSDXC 340S – Ultra Performance Mobile Storage
The Transcend microSDXC 340S combines A2 application performance, UHS-I U3, V30 and Class 10 specifications with capacities up to 512GB. With sequential read speeds of up to 160MB/s, 3D NAND flash and resistance against temperature, water, shock, X-rays and static electricity, it provides a versatile storage solution for compatible mobile devices, gaming consoles, cameras and drones.
Mustafa Computers – Authorized Transcend Reseller in Pakistan
Mustafa Computers is an Authorized Transcend Reseller in Pakistan, offering genuine Transcend products with competitive pricing, manufacturer warranty support, and professional pre-sales and after-sales assistance.
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Shipping Policy
Shipping Policy
Free Delivery within Lahore: Available on orders above PKR 10,000 (selected items only).
Other Cities: Free delivery on orders above PKR 15,000. Standard courier charges apply otherwise.
Delivery Time: 3–5 business days (subject to courier and destination).
Couriers: We use TCS and Postex. Bulky items may be shipped via city-to-city cargo, with self-collection for cheaper delivery.
COD Orders
- Available on selected items only, up to PKR 19,000.
- 4% government tax applies on COD payments.
- Orders PKR 19,001–100,000 require 50% advance.
- Orders above PKR 100,000 require full advance or in-store pickup.
- Full advance may be required for certain items below PKR 19,000.
Return Policy Warranty
- 7 Days Return Warranty for defective or incorrect items.
- Products must be in original packaging with all accessories and documentation.
- No return for “change of mind”, software, or consumables (e.g., cartridges, toners).
Warranty Claim
- Warranty coverage is as per manufacturer or Mustafa Computers’ terms.
- Company may repair, replace, or issue a credit note for valid claims.
- No warranty for electrical damage, cartridges, or printer heads.
- Warranty void if item is physically damaged or packaging/accessories are missing.
- Check warranty applies to used items only.
- For international warranty, customer bears freight charges.
Customers must ensure they receive the warranty card and invoice at purchase. (Some items are valid by invoice only.)