Can I use this directly with my phone?

Absolutely! Our USB drive works perfectly with iPhone 15+ (Type-C models) and all OTG-enabled Android devices - instantly expand storage, back up photos, and share files anywhere without cloud subscriptions.

Why is the actual storage less than advertised?

Storage manufacturers calculate capacity in decimal units (1GB = 1,000MB), while operating systems use binary measurements (1GB ≈ 1,024MB). This results in ~7-10% less formatted space. This difference does not indicate a product defect.

My speed tests show lower results than 550MB/s. Why?

Actual transfer speeds may vary from the rated 550MB/s due to factors like your device's USB port version (USB 2.0/3.0), file types, and system performance - for optimal results, test with USB 3.0+ ports and large single files.

Why does the flash drive get warm during use? Is this normal?

Yes, mild warmth is completely normal during high-speed transfers (especially at 550MB/s) due to active data processing - our drive uses premium chips with thermal protection, and temperatures stay well within safe limits.

The drive isn’t recognized on my computer. What should I do?

First try different USB ports and update drivers. If still not recognized, check Disk Management (Windows) or Disk Utility (Mac) for formatting, or test on another device. Message us if problems continue.

ASIN	B0FMY7B5YC
Best Sellers Rank	#163 in External Solid State Drives
Brand	SayRose
Color	Gradient blue-pink
Customer Reviews	4.8 4.8 out of 5 stars (12)
Date First Available	August 19, 2025
Flash Memory Size	1 TB
Hard Drive	1 TB Solid State Drive
Hard Drive Interface	Solid State
Item Dimensions LxWxH	3.06 x 0.8 x 0.1 inches
Item Weight	1.78 ounces
Item model number	UP1-1TB
Manufacturer	SayRose
Product Dimensions	3.06 x 0.8 x 0.1 inches
Series	UP1

SayRose 256GB SSD USB C Flash Drive 550MB/s High Speed Type C+ USB A 3.2 Gen2 Dual Interface Thumb Drive for iPhone 15, 16 Series/MacBook/iPad/Android Phone/Tablet

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