
What is the Four-Corner Flat Metal USB Drive?
The four-corner flat metal USB drive is a high-quality storage tool centered on a neutral minimalist style. The body is made of smooth and delicate metal material, treated with a glossy finish to present a unique metallic luster, combining wear resistance and drop resistance with visual texture.
The rounded design of the four-corner flat head has no sharp edges, not only making plugging and unplugging operations smoother but also fitting the palm for high-frequency use scenarios. Whether for business office, data backup, or gift customization, it becomes a choice that balances practicality and appearance with a low-key yet classy look.
Flat Metal USB Drive Interface Type
USB 3.0 high-speed interface (blue port), supporting plug-and-play, compatible with USB 2.0/1.1 devices, no additional drivers required, suitable for mainstream systems such as Windows/macOS/Linux, and can be directly read by devices like car stereos, smart TVs, and projectors.
| Parameter Category | Specific Information |
| Capacity | Basic : 32GB/64GB/128GB/256GB/512GB/1TB/2TB |
| Dimensions | 37MM×12MM×5MM (palm size, only 5MM thick, easy to store in pockets/keychains) |
| Material | All-metal body (surface with glossy finish, scratch-resistant and wear-resistant) |
| Color | Silver,Gunmetal |
| Read/Write Speed | – Read speed: 20MB/s (USB 3.0 interface) – Write speed: 10MB/s (stable transmission without lag) |
| Weight | 20g |
Flat Metal USB Drive Colors and Capacities
• Silver: Like pure silver quenched in the morning light, the silver body presents an almost flawless metallic luster with a mirror-level glossy finish, exuding a warm silver tone in natural light, hiding luxurious texture in low-key style. This elegant color perfectly adapts to formal scenarios such as business meetings, signing ceremonies, and high-end forums, and looks more refined with logo engraving.
• Gunmetal: A deep and cold matte metal color with a hardcore tech vibe, the gunmetal body uses a matte frosted metal process, with a deep color like the cold hard coating on a firearm’s surface, offering a delicate touch without losing texture. Gunmetal creates a “standoffish” hardcore tech vibe with its low-saturation gray-black tone, standing out in the pile of digital products, especially fitting for groups pursuing personality and functionality such as programmers, designers, and e-sports players.


Large Capacity Expansion Options
From the basic 32GB (suitable for daily document storage) to 2TB (can store over 500 HD movies or tens of thousands of RAW format photos), it supports capacity upgrades as needed.
Whether for student courseware backup, designer material storage, or enterprise batch data archiving, a matching solution can be found through “expansion technology”, saying goodbye to the trouble of frequent USB drive replacement.
Support for Double-Sided Laser Engraving LOGO

• Body customization: Both the front and back can be printed with enterprise logos, brand slogans, or personalized patterns through laser engraving technology, with a precision of 0.1mm, and the writing is permanently retained without fading. The metal base color and engraving lines form a sharp contrast, enhancing brand recognition.
• Packaging customization: Standard: PP bag (lightweight and environmentally friendly, suitable for retail scenarios). Upgrade options: iron box (shockproof and pressure-resistant, highlighting high-end texture), customized paper box (can print brand stories/product parameters, suitable for gifting). Whether as corporate anniversary gifts, partner appreciation gifts, or event promotion giveaways, unique brand memory points can be created through “body + packaging” dual customization.
Q1: Is the shell of the four-corner flat metal USB drive waterproof and moisture-proof?
A1: Waterproof, moisture-proof, and dust-proof, three-effect protection! The body adopts an all-metal sealed design, with hard and drop-resistant material, which can resist daily splashes, rain erosion, and dusty environments. Even if it accidentally falls into a water cup or is carried for mountain climbing, data security can be assured (note: not suitable for long-term immersion, please dry it in time).
Q2: Can it be carried around on a keychain?
A2: Standard keychain, convenient to hang anywhere! The USB drive comes with a detachable keychain, which can be easily hung on keys, wallets, and backpack zippers, not only solving the problem of easy loss of USB drives but also using the luster of the metal body as a pendant decoration, combining practicality and beauty.
Q3: Are the read/write speeds different for different capacities?
A3: Stable speed, independent of capacity! Whether 32GB or 2TB, all use a unified chip solution. Under the USB 3.0 interface, the read speed is stable at 20MB/s, and the write speed is 10MB/s, without reducing transmission efficiency due to increased capacity.
Specifications
| Model | MEA-23 |
|---|---|
| Product Type | Metal usb flash drive |
| Material | Zinc alloy / aluminum / stainless steel shell |
| Capacity | 20GB-2TB |
| Interface | USB 3.0 (up to 5Gbps) |
| MOQ | 100 pcs for logo orders; stock samples from 1-10 pcs |
| Lead Time | Free sampling in 1-3 days; bulk production 7-12 days |
| Logo Options | laser engraving, UV full-color printing, silk screen |
| Quality Assurance | 100% H2testw full-capacity test, A-grade original chip, no fake capacity |
| Warranty | 5-year chip warranty / 1-year UDP module warranty |
| Packaging | Individual PP bag (default); custom gift box available |
FAQs
Are the flash chips genuine? How can I verify?
Yes, all chips are 100% genuine A-grade from Samsung, Toshiba, Micron, or SK Hynix. We provide chip brand and batch information on request. You can verify authenticity using software tools like ChipGenius or H2testw. We never use recycled, upgraded, or fake-capacity chips.
Can I become an authorized distributor for YOUSAN USB products?
Yes. We welcome distributor partnerships worldwide. Distributors enjoy exclusive territory rights, priority production slots, extended credit terms, and up to 40% off retail pricing. Minimum annual commitment is 10,000 pcs across product lines. Contact us to discuss.
Can I use the Four-Corner Flat Expandable Metal USB Drive for employee onboarding or training programs?
Yes. Many companies use our USB drives for new-hire kits loaded with training videos, policy documents, and onboarding materials. We can create write-protected partitions so training content can’t be accidentally deleted while leaving space for personal use.
What material is the Four-Corner Flat Expandable Metal USB Drive made of?
The metal USB flash drive is crafted from Zinc alloy / aluminum / stainless steel shell. All materials are RoHS-compliant, non-toxic and safe for promotional use. We provide material certificates and test reports upon request for compliance verification.
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Get a Custom Quote
YOUSAN USB (YouSan Technology) is a Shenzhen custom USB flash drive manufacturer with a 5,000 m² factory, 150+ workers and a daily capacity of 30,000 pcs. Tell us your quantity, capacity and logo artwork, and we will send a formal quotation within 15 minutes and a free design mockup within 24 hours.
- Email: sales@yousanusb.com
- WhatsApp / Tel: +86 13826586481
- Browse more styles in our metal usb flash drives collection




