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HTC specifies microSD expansion up to 2TB for the U11, using SIM2 in its Flex Storage tray. A card therefore replaces a second SIM. Format the card in the phone and keep independent backups; this guide does not assume Android adoptable storage.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | SanDisk Extreme PRO microSDXC 1TB | $120–$180 | Amazon · eBay |
| 2 | Samsung PRO Plus microSDXC 512GB | $45–$75 | Amazon · eBay |
| 3 | SanDisk Extreme microSDXC 512GB | $45–$75 | Amazon · eBay |
| 4 | Kingston Canvas Go! Plus microSDXC 512GB | $40–$70 | Amazon · eBay |
| 5 | Lexar PLAY microSDXC 512GB | $35–$65 | Amazon · eBay |
| 6 | Samsung EVO Select microSDXC 256GB | $20–$35 | Amazon · eBay |
| 7 | SanDisk Ultra microSDXC 256GB | $20–$35 | Amazon · eBay |
| 8 | PNY Pro Elite microSDXC 256GB | $20–$40 | Amazon · eBay |
| 9 | Transcend 300S microSDXC 128GB | $12–$25 | Amazon · eBay |
The picks, in detail
SanDisk Extreme PRO microSDXC 1TB
1TB U3/V30 microSDXC option for a large U11 media library, using the SIM2 position.
- microSDXC
- 1TB U3 V30
- maximum practical capacity
- loses SIM2
Samsung PRO Plus microSDXC 512GB
512GB U3/V30 microSDXC card for U11 photos, video and downloads in the hybrid tray.
- microSDXC
- 512GB U3 V30
- high-capacity performance
- loses SIM2
SanDisk Extreme microSDXC 512GB
512GB U3/V30 microSDXC card for the U11’s shared SIM2 storage position.
- microSDXC
- 512GB U3 V30
- high video class
- hybrid tray
Kingston Canvas Go! Plus microSDXC 512GB
512GB U3/V30 microSDXC option for users transferring large media files from the U11.
- microSDXC
- 512GB U3 V30
- fast class rating
- hybrid tray
Lexar PLAY microSDXC 512GB
512GB microSDXC card oriented to portable media storage in the U11.
- microSDXC
- 512GB
- large library capacity
- loses SIM2
Samsung EVO Select microSDXC 256GB
256GB microSDXC card for a less costly U11 expansion while retaining high capacity.
- microSDXC
- 256GB
- middle capacity
- hybrid tray
SanDisk Ultra microSDXC 256GB
256GB microSDXC choice for U11 photo and offline-media storage.
- microSDXC
- 256GB
- widely available
- basic speed tier
PNY Pro Elite microSDXC 256GB
256GB U3/V30 microSDXC card for users needing a higher video speed class in the U11.
- microSDXC
- 256GB U3 V30
- V30 rating
- hybrid tray
Transcend 300S microSDXC 128GB
128GB U1 microSDXC card for ordinary U11 file and photo storage.
- microSDXC
- 128GB U1
- lower-cost option
- not a V30 card
Buying tips
- Using a card occupies SIM2 in the U11 Flex Storage tray.
- Format in the phone and buy from established sellers.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.