01

Read the condition label without upgrading it

In this guide, “original-marked used” and “refurbished or re-marked” describe the supply-condition categories disclosed by MemorySemiTech. Both are used packaged chips. Neither is described here as factory-new.

Keep three questions separate: which exact component is offered, what condition is disclosed, and what evidence supports the requirements of your application. A condition label alone is not proof of authenticity, a performance grade, a complete history or manufacturer authorization.

Do not assume that every model is available in both conditions. Confirm the actual model and condition proposed for the specific inquiry.

  • Original-marked used does not mean factory-new.
  • Refurbished or re-marked does not mean a new device.
  • Neither label by itself establishes application suitability or a remaining-life guarantee.
Review the used memory chip families
02

Ask for disclosure that keeps identity and condition separate

MemorySemiTech discloses the actual model and supplied condition before purchase. Keep those facts distinct in the discussion: the part number identifies the proposed component, while the condition description explains how the used supply is presented.

If markings, labels or available information are inconsistent or incomplete, ask for clarification rather than assigning a model from appearance. State what remains unknown. The following are optional questions for your review, not additional fields required to start an inquiry.

  • What complete part number is proposed?
  • Is the offered supply original-marked used or refurbished/re-marked?
  • What identity or condition information remains uncertain?
  • Which relevant photographs or model-specific records can be provided?
  • If different conditions are offered, how are their descriptions and quantities kept separate?
Discuss the offered model and condition
03

Use photographs for description—not as a performance certificate

A photograph can show visible markings, package condition and labels. It does not record the device’s electrical behavior in your application. A clean-looking package or clear printing is not a substitute for a model-specific technical review.

Retain unedited evidence photographs with the existing markings and visible condition clear. Distinguish what the image actually shows from a supplied history or a reported test result. A reference photograph on a website is not a record of the specific lot being quoted.

Ask which model-specific observations or records support the requirements of your application. Review their stated scope and conditions separately from the product’s appearance.

  • Visible identity and condition: describe what the image actually shows.
  • Reported history: distinguish supplied information from a visual observation.
  • Electrical or platform results: review their stated model, scope and conditions separately.
Understand the model-specific testing framework
04

Match the exact model before comparing supply conditions

Start a comparison with the part your board or application needs, not with the most attractive condition label. Generation, package, capacity and relevant interface or operating requirements must match the selected model and intended platform; similar-looking packages are not a complete specification.

For DRAM, distinguish DDR2, DDR3, DDR4 and DDR5. For eMMC, confirm the exact model and the platform’s relevant host and boot requirements. For SPI Flash, identify SPI NOR or SPI NAND before reviewing a proposed part. No universal voltage, speed, temperature or test program is asserted here.

For a concrete comparison, Nanya NT5AD512M16C4-JR is DDR4, while Samsung K4B4G1646E-BYMA is DDR3L. A shared used-condition label does not establish interchangeability: match the exact device to the board requirements. Manufacturer-listed specifications are not batch test results, and quantities on the linked listings are dated snapshots rather than live availability.

When hands-on application evaluation is needed, use the separate sample-qualification guide. It explains that workflow without treating appearance or a supply-condition label as a test result.

DRAM DDR2–DDR5 model requirements NT5AD512M16C4-JR — DDR4 model details K4B4G1646E-BYMA — DDR3L model details eMMC model requirements SPI NOR and SPI NAND model requirements How to evaluate samples before a bulk order
05

Confirm the same support without treating it as newness

Yuyue provides three-year after-sales support starting from the customer's acceptance date. For after-sales assistance, contact us through the email or WhatsApp listed on this website. Confirmed defective chips receive replacement or replenishment support. Original-marked used and refurbished, re-marked chips receive the same support with their actual condition disclosed.

The same support policy does not turn either supply condition into factory-new material or establish a device’s remaining operating life. Keep the agreed model and condition clear, and contact the team to review an after-sales request and confirm arrangements.

Review the existing three-year support statement
06

Start a purchasing inquiry with model and quantity

For an initial quotation discussion, start with the model or part number—or the available specification—and approximate quantity. If you already have a condition preference or restriction, you can include it; it is not an additional mandatory step for starting the inquiry.

You do not need every photograph or technical record ready to ask about a part. Product details and next steps can be clarified in the discussion. An inquiry is not stock confirmation, a completed quotation or an order.

The quotation form still requires a work email and privacy consent. Sample requests are a separate mode with model, intended-application and expected-quantity information; the sample guide explains that evaluation workflow.

  • Model, part number or available specification:
  • Approximate quantity:
  • Optional condition preference or restriction, if already known:
Start a model-and-quantity quotation inquiry Review the separate sample-evaluation guide
FAQ

Common questions

Does original-marked used mean factory-new?

No. It is a disclosed used-supply category. The label or a visible marking alone is not proof of newness, authenticity, manufacturer authorization, a complete history or performance in your application.

Can appearance prove that a refurbished chip will work in my platform?

No. Photographs support a description of visible identity and condition; application fit and electrical results require a separate model-specific review. Refurbished or re-marked supply is not described as new.

Do the two supply conditions receive different after-sales support?

Yuyue provides three-year after-sales support starting from the customer's acceptance date. For after-sales assistance, contact us through the email or WhatsApp listed on this website. Confirmed defective chips receive replacement or replenishment support. Original-marked used and refurbished, re-marked chips receive the same support with their actual condition disclosed.

What do I need to start a quotation discussion?

Start with the model or part number—or the available specification—and approximate quantity. Add a condition preference only if you already know it. The website still requires a work email and privacy consent; sample requests are a separate mode with additional application information.

A clear starting point

Have a model and quantity in mind?

Start a quotation inquiry Review the chip families