TF Card RFQ Checklist
This checklist turns a vague TF card enquiry into a specification a factory can quote against. You do not need every line filled on the first message — product type, capacity, quantity and application are enough to start a conversation, and the rest narrows the price and prevents a surprise later. The point of listing it all is not to overwhelm you, but to show what moves the quote and what you should confirm before you commit volume. Use it as a send-and-confirm list, then carry the same points into your acceptance checklist so batch two matches batch one.
How to use this checklist
Send what you know. If you only have product type, capacity, quantity and target date, that is a valid starting point — we will tell you which open variables move the price most.
The more that is defined up front, the less the price moves after acceptance. Treat the list as the spec you will also use to accept the goods.
What a firm TF card quote must state
| Clause | Why it matters |
|---|---|
| Capacity | 4GB–256GB range; defines the die and the price step |
| Speed class or MB/s (read/write) | Sets sustained-write behaviour, not just peak read |
| NAND source and grade | The biggest cost and reliability variable |
| Controller | Affects host compatibility and performance |
| Interface / host limit (SDHC vs SDXC) | A 64GB card will not work in an SDHC-only host |
| Packaging and branding | Priced into the unit; setup cost if custom |
| Sample and acceptance criteria | What is tested, how, and what fails |
Checklist — use this before you send or accept
Product basics
Performance
Peak read speed is not the same as sustained write. State the workload, not just a number.
Silicon and build
Branding and packaging
Acceptance and compliance
Commercial
Send your requirement
We reply to business enquiries within 1 business day. If you are comparing suppliers, send the specification you were quoted — it makes the comparison meaningful.
Request a quoteFrequently asked questions
Do I need to know the speed class before asking?
No. If you know the host device and what it records, tell us that and we will propose the matching class. A speed class pulled from a competitor listing is often not the one your device actually needs.
Can I specify the NAND brand?
Yes, where the supply situation allows. We source from the major brands at A+ grade and state the source and grade in writing before quoting. See how NAND grades and sourcing work.
What if I only have a target capacity and quantity?
That is enough to start. Send the product type, capacity, quantity and application, and we will return a quotation with the open variables flagged so you can decide which to fix.