About Which Memory Card

Independent Storage Guidance

Which Memory Card is operated independently. We recommend genuine SanDisk memory sold by UK retailer Denada Sales (of which the site creator is employed by), and may earn an affiliate commission from qualifying purchases.

Because shoppers frequently encounter confusing card errors, wrong capacity sizes, or slow memory cards that freeze up dashcams, we built Which Memory Card to give buyers an instant, plain-English answer before purchasing.

Affiliate & Merchant Transparency

We believe in open and clear commercial disclosure:

• Buying links on this site direct to verified merchant listings on eBay (such as 365daystechshop) and Amazon UK (Merchant ID A17TNI90JWN8TV).
• As an eBay Partner and Amazon Associate, Which Memory Card earns a commission from qualifying purchases made through affiliate links at no extra cost to you.
• We specialize primarily in genuine SanDisk flash memory products because of their consistent controller quality, high reliability, and clear product tiering (High Endurance, MAX Endurance, Extreme, Extreme PRO, and Ultra).
• For devices requiring specialized endurance (such as dashcams and 24/7 security cameras), we also include independently tested alternatives such as the Samsung PRO Endurance.

How We Verify Compatibility

Every device in our catalog is mapped against rigorous technical requirements rather than generic sales copy:

• Official Documentation: We reference official manufacturer operating manuals, service guides, and chipset datasheets for exact SDHC / SDXC controller limits.
• Loop Recording & Continuous CCTV Demands: Western Digital / SanDisk explicitly excludes continuous loop recording (dashcam and surveillance camera use) from standard consumer card warranties (Ultra / Extreme). We verify these operational duty cycles and exclusively recommend High Endurance or MAX Endurance NAND for continuous writing.
• Filesystem & FAT32 Traps: Sat Navs, trail cameras, and car stereos typically require FAT32. Standard cards 64GB and larger ship pre-formatted as exFAT, causing immediate read errors. We flag the exact 32GB boundary where plug-and-play operation is guaranteed.
• Realistic Capacity Sweet Spots: While some devices technically support up to 512GB, we highlight the sweet spot where price-per-gigabyte, controller stability, and card speed intersect.

Questions or Model Not Listed?

If your device is not listed in our directory or you are experiencing an unexpected storage error, our team is happy to review your device's technical specifications personally.

Contact our storage team directly via our home page search form.