Why does the displayed capacity differ from the nominal capacity?

The difference is due to calculation methods. Manufacturer standard uses 1GB=1,000MB, while OS standard uses 1GB=1,024MB.

What is the warranty or storage lifetime?

The storage lifetime is more than 10 years. The device is solid-state, shockproof, and electromagnetic proof.

Which operating systems are supported?

Compatible with Windows 98/7/8/10/XP/Vista, Mac OS 9.X, and Linux 2.4 or above.

Type C OTG Flash Drive Bulk Pack of 100 Thumb Drives Value Small Capacity

Name: Type C OTG Flash Drive Bulk Pack of 100 Thumb Drives Value Small Capacity
Brand: Shenzhen Xingshidi Technology Co., Ltd.
SKU: 799514722

Guangdong, ChinaShenzhen Xingshidi Technology Co., Ltd.

US$3.99

100-499 Pieces

US$2.79

500-999 Pieces

US$1.77

1,000-9,999 Pieces

US$1.55

10,000-99,999 Pieces

US$1.29

100,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Storage Capacity

Customized

Interface Type

USB 2.0

Model NO.

TF-0850

Shape

Stick

Material

Metal

Open Style

Opening

USB Type

Creative USB Disk

Color

White

Function

Storage USB Disk, Encrypt USB Disk, Boot USB Disk, Antivirus USB Disk, Thermometer USB Disk, Music USB Disk

Security Check

Support Security Check

Transport Package

Blister

Specification

Trademark

OEM

Origin

China

HS Code

8523511000

Production Capacity

50000/Day

Key features

Real Capacity Guarantee: True capacity supported by free H2test software verification for accuracy.

Custom Logo Service: Laser engraving or silk-print available with MOQ over 50 pcs.

High Speed Transfer: Read speed up to 20M/S and write speed up to 15M/S for USB 2.0.

Durable Metal Design: Metal and plastic construction, shockproof and electromagnetic proof.

Wide Compatibility: Works with Windows, Mac OS, Linux, and various USB ports.

Long Storage Life: Data retention guaranteed for more than 10 years.

Multiple Capacity Options: Available in 1GB to 512GB to meet diverse storage needs.

Portable & Lightweight: Compact size (5.3x1.7x0.7cm) and only 15g weight for easy carry.

Company profile

Fast Delivery

Shenzhen Xingshidi Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedExport Year: 1 Month CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤5.61h CertifiedTerms of Payment: LC, T/T, PayPal, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

AI-Powered supplier vetting

SummaryShenzhen Topfine Technology Co., Limited is a China-based limited company described across the records as both a trading company and manufacturer/factory, supplying flash drives and related storage products. It reports broad customization and ODM capabilities, new products within the past year, extensive export coverage, and an off-peak lead time within 15 working days. However, the available quality and service-control evidence is weak: no written corrective-action or complaint-handling procedures are reported, quality assurance and traceability statuses are unknown, and quality-control test equipment is recorded as zero. A TUV Rheinland audit record is present, but its evaluation result is recorded as 0 and the report validity ended in 2025. Financial information is represented only by years, without substantive financial performance evidence. No customer cases or named-brand OEM references are provided.

Supplier typeThe supplier is identified as Shenzhen Topfine Technology Co., Limited, a China-based limited company. Its records classify it as both a trading company and manufacturer/factory, while its stated business scope includes electronic products, computer peripherals, U disks, and import/export activities; another record lists medical-device-related licensed projects, creating some scope inconsistency.

After-Sales capabilityThe supplier reports no written procedures or records for corrective and preventive actions or effective customer-complaint handling. This is explicit evidence of a documented service-process deficiency.

R&D capabilityThe supplier states that it had new products during the past year and provides ODM services, indicating some product-development capability. It also reports no available SDK, but the absence of an SDK is not by itself evidence that its general innovation capability fails the field.

Production capacityThe supplier is described as a manufacturer/factory and reports production of storage-related products including HDDs, SSDs, micro SD cards, USB flash drives, and memory cards, with stated output of 5,000,000 pieces. However, its quality-control test-equipment quantity is recorded as zero, while quality assurance and traceability statuses are unknown, weakening confidence in production-control maturity.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and also states that it provides ODM services. These records directly support broad customization capability.