GIGASTONE microSDXC Card 128GB 2 Pack
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dependable pair of 128GB cards for 4K recording devices, worth checking your device's file system requirement against before first use.
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ASIN: B07XG2X54ZModel: GS-2IN1633XBKCategory: MicroSD Cards
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Overview
GIGASTONE packages two 128GB microSDXC UHS-I cards rated for up to 95MB/s read and 40MB/s write, built for security cameras, dashcams, drones and other 4K-recording devices, with two full-size SD adapters in the box.
GIGASTONE ships these cards formatted as exFAT out of the box, and flags that older security cameras, dashcams or Android phones may need the card reformatted to FAT32 before it will work. The cards are backed by a 5-year limited warranty and are built to resist water, shock, temperature extremes and X-ray exposure.
- 128GB capacity, two-pack
- 95MB/s read, 40MB/s write, UHS-I Class 10
- Two full-size SD adapters included
- 5-year limited warranty
Who it's for
Owners of dashcams, drones, action cameras or security cameras who need continuous 4K recording capacity and want a spare card on hand, plus buyers who want each microSD card to have its own adapter for use in laptops or readers. Less suited to anyone whose device only accepts FAT32 and who does not want to reformat first.
Pros and cons
- Two 128GB cards, each with its own SD adapter
- Rated for 4K video recording at up to 95MB/s read
- Built to resist water, shock, temperature extremes and X-rays
- 5-year limited warranty
- Ships in exFAT, needs reformatting on some older or FAT32-only devices
Performance notes
Rated speed tops out at 95MB/s read and 40MB/s write, which GIGASTONE positions for 4K video recording and playback rather than burst photo shooting. The default exFAT formatting suits most current devices and larger file sizes, but the listing is explicit that older or FAT32-only hardware needs the card reformatted first, worth doing before relying on the card for a security camera or dashcam that needs to write continuously.
Specifications
| Brand | Gigastone |
|---|---|
| Model | GS-2IN1633XBK |
Frequently asked questions
Do these cards need to be reformatted for a dashcam?
GIGASTONE notes the cards ship formatted as exFAT, and older dashcams, security cameras or Android phones may need them reformatted to FAT32 first.
Does each card come with its own adapter?
Yes, the two-pack includes two separate full-size SD adapters, one for each microSD card.
Are these cards suited to continuous security camera recording?
They are rated for 4K video recording and built to resist water, shock and temperature extremes, which suits the always-on conditions of a security camera or dashcam.