COBALT 128GB UHS-II SD Cardvs A6700
ProGrade Digital
COBALT 128GB UHS-II SD Card
Starting from £50 new
Best for Professional sports & high-speed burst photography
View COBALT 128GB UHS-II SD Card
GearScore™ Verdict — Which should you buy?
Professional Sports & High-Speed Burst Photography — COBALT 128GB UHS-II SD Card: If your camera has a UHS-II slot, the COBALT is one of the best cards to put in it. ProGrade is a brand started by former SanDisk and Lexar engineers — the quality and consistency match the pedigree. Faster file transfers and better burst clearance justify the price premium for professionals.
All-Round & Video — A6700 (2023): Best-in-class autofocus and 4K/120p video in a compact APS-C body — the standout camera under £1,000.
Who should buy what
COBALT 128GB UHS-II SD Card
- Professional photographers with UHS-II capable camera bodies
- Sports and action photographers who shoot at 20fps+ and need fast buffer clearing
- Videographers recording 6K/8K or high-bitrate 4K footage
- Working photographers who can't afford to miss a shot due to buffer lag
A6700 (2023)
- APS-C photographers who want the best Sony autofocus in a compact body
- Video shooters who need 4K/120p and subject tracking in a smaller package
- A6400 or A6600 owners ready for a significant AF and video upgrade
- Photographers who want near-A7 performance without the full-frame price
Quick take: The cobalt 128gb uhs-ii sd card is the most affordable; only the cobalt 128gb uhs-ii sd card is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | COBALT 128GB UHS-II SD Card | A6700 (2023) |
|---|---|---|
| Price | £50 | £999 |
| Sensor | — | 26MP APS-C Exmor R BSI CMOS |
| Resolution | — | 26.0MP |
| Video | — | 4K/120p, 4K/60p oversampled, S-Log3, 10-bit |
| Autofocus | — | 759-point phase-detect, AI subject recognition (human/animal/bird/vehicle) |
| Stabilisation | — | 5-axis IBIS, 5.0 stops |
| Burst Rate | — | 11fps mechanical, 30fps electronic |
| Battery Life | — | ~570 shots (CIPA) |
| Weight | 2g | 493g body only |
| Dimensions | Standard SD card size (32 × 24 × 2.1mm) | 122.0 × 69.0 × 75.1mm |
| Weather Sealed | Yes | No |
| Viewfinder | — | EVF, 2.36M dots |
| Screen | — | 3.0" vari-angle touchscreen |
| Mount | — | Sony E-mount |
| Memory Cards | — | Single SD UHS-II / CFexpress Type A slot |
| Connectivity | UHS-II (V60, U3) — read up to 250MB/s, write up to 130MB/s | USB-C (3.2), Bluetooth, Wi-Fi |
Suitability by genre
| Genre | COBALT 128GB UHS-II SD Card | A6700 |
|---|---|---|
| Wildlife | ||
| Video | — | |
| Portrait | ||
| Travel | — | |
| Street | — | |
| Landscape | — | |
| Vlogging & Video | — | |
| Sports & Action | — |
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