The right memory card must match the camera or device before its capacity and speed become useful. This memory card buying guide compares the SD and CompactFlash examples currently listed at Richcom in Sri Lanka.
Compare the current Flash Memory range and prices in Sri Lanka. Use this guide to decide what to check, then read the complete specification on your chosen listing.
Memory Card Buying Guide: Match the card format first
Full-size SD, microSD and CompactFlash are different physical formats. The current flash-memory category includes a CompactFlash model as well as SD cards, so read the exact product name. An SD card cannot simply replace CompactFlash. Check the device manual for accepted card families, maximum capacity and supported file-system requirements.
Read speed is different from recording speed
A large advertised read-speed figure mainly helps describe transfers to a compatible reader. Recording needs sustained writing performance. SD Speed Class, UHS Speed Class and Video Speed Class address defined minimum sequential performance. Choose the class required by your camera rather than assuming every card with a high read-speed label is suitable for the same recording mode.
Check the reader as well as the card
UHS-II performance requires a suitable host or reader. Capacity, bus interface and speed class are separate details, so compare all three. For photography, consider how many cards you want in rotation and how you will copy files after a shoot. Keep another copy of important material; a memory card is not the only place valuable work should live.
Current Richcom listings to compare
These are examples from the published catalogue, rather than a complete shortlist for every application. Prices are in LKR, checked on 10 October 2026. Follow each link for the current price, availability, ordering conditions and full specification.
| Listed product | Listed price (LKR) |
|---|---|
| SanDisk (USA) 32GB Extreme Pro UHS-II SDHC SD Card 300MB/s (3Y) | 19,800 |
| SanDisk (USA) 128GB Ultra UHS-I SDXC SD Card 120MB/s (5Y) | 7,600 |
| SanDisk (USA) 32GB Extreme Pro CompactFlash SDCard (160MB/s) (3Y) | 14,700 |
Before ordering
- Match physical format and supported capacity.
- Check the recording speed class required by the device.
- Confirm reader support and a separate copy of important files.
- Read the individual warranty and confirm delivery or collection arrangements.
For a suitable shortlist, tell us the equipment you use and the result you need. Include model numbers and the relevant compatibility details. Contact Richcom Technology at [email protected] with your requirements.
Frequently asked questions
Is CompactFlash an SD card?
No. The physical formats differ, even if a shop category groups them together.
Does a 300MB/s read label guarantee that recording speed?
No. Read speed and sustained write performance are different specifications.
Browse related categories
Manufacturer reference
SD Association speed-class guidance. Use the current manufacturer documentation for compatibility and the Richcom listing for the supplied product and local terms.
