Optical Transceiver Supplier for Data Center and Enterprise Links

Identity note: the store record for this business lists its Business Type as Trading Company, and this site therefore describes the business as a supplier. The company website also carries manufacturing wording about its own research team and production lines; that wording is quoted here only as a company-website statement, and it conflicts with the Trading Company record. The two positions have not been reconciled, and buyers who need a manufacturing statement for a specific order should ask for it in writing in the enquiry.

What this supplier catalogue contains

The catalogue is built around five models with a listed specification each: a 40G multimode QSFP module, a 100G CWDM4 QSFP module, a 1.25G BIDI SFP module, a 10G single-mode SFP module supplied as a compatible module, and a 400G QSFP-DD module. Every other line on this site - including the wider data center hardware range of switches, storage and memory - is described at category or guide level, because no detailed specification for those lines was published in the source material used for this site.

That boundary is deliberate. A buyer who needs a figure for a model that has no product page here should ask for it in the enquiry, naming the rate, wavelength, distance and connector, rather than reading a figure off a neighbouring model. Neighbouring models differ in wavelength, fibre type, distance and connector, and a figure borrowed across models is wrong more often than it is right.

Supplier identity, stated plainly

The store record for this business lists its Business Type as Trading Company, and this site describes the business as a supplier on that basis. The company website also carries manufacturing wording about its own research team and production lines. Both positions are shown on the About page with their sources, because they conflict and have not been reconciled, and this site does not resolve the conflict by picking one side silently. Buyers who need a manufacturing statement for a specific order should ask for it in writing.

The registered company name used across this site is Shenzhen Topstar Technology Industrial Co., Ltd., taken from the store registration. The shorter form that appears in some source tables is a condensed abbreviation and is not used as the company name here; the About page explains the difference in its first section so that a buyer comparing documents is not misled by the two forms.

How to use this site

Start from the line you need: SFP for 1G and 10G access and aggregation links, QSFP for 40G and 100G aggregation, BIDI for single-fibre links, or 400G for high-density data center interconnects. Each category page explains what belongs in that line and links to the product pages that carry a listed specification. The guides explain the choices that cut across lines, such as single-mode against multimode, SFP against QSFP, and how compatibility should be checked.

Every product page carries the same discipline: the listed specification for that model only, conflicts inside the source pages flagged rather than hidden, and company-level commercial terms marked unavailable where no company-level figure was published. Prices are not published for any model, and a single-model commercial note is never presented as a company-wide term.

How to specify this line

A usable enquiry for optical transceiver modules starts with the rate, the wavelength, the fibre type and the distance, because those four items decide whether a module fits the link at all. The connector and the form factor come next, followed by the operating temperature range and whether digital diagnostics are required. Buyers who send only a rate, or only a model-style name, usually need a second round of questions before a quotation can be confirmed, so including the full set in the first message saves a cycle.

Distance figures deserve special care. A distance quoted for one fibre type does not transfer to another, and a distance quoted for one wavelength does not transfer to a different wavelength. On this site every distance is tied to the fibre and wavelength it was listed with, and where the source pages disagree the conflict is flagged on the page. If a distance matters for your link, name the fibre you will actually install and ask for the figure to be confirmed against that fibre before ordering.

What to confirm before ordering

Before an order is placed, confirm the model, the rate, the wavelength, the distance, the connector and the quantity in writing, and confirm any certification document you need by name. Minimum order quantity and lead time are unavailable at company level on this site, so ask for both per model in the enquiry rather than assuming a company-wide term. Quotations are confirmed per order, and specifications are confirmed per model before payment.

Compatibility is a separate check from the optical figures. A module that matches on rate and wavelength can still fail on a host platform that does not accept it, so name the host platform in the enquiry when compatibility matters. Where this site states a compatibility position, it states the source of that position, and it does not extend a compatibility statement from one model to another. If the platform is not named, compatibility cannot be confirmed from this page alone.

Models on this page

Frequently asked questions

How do I get a quotation?

Send an enquiry naming the model, the rate, the wavelength, the distance and the quantity you need, plus the application. Quotations are confirmed per order, and specifications are confirmed per model before payment. This site does not list fixed selling figures, and no price is shown for any model.

What certification documents can you provide?

The company states ISO 9001, CE, FC, 3C and RoHS names. Certificates are available upon request. If a buyer needs a certificate for a specific model, name the model in the enquiry so the correct document can be checked. No certificate numbers are published on this site.

Do the specifications on one page apply to the whole range?

No. Specifications are shown per model and must not be read across the whole range. Where a value is not listed for a model, the page says to confirm per model rather than filling in a generic figure, and where the source pages disagree, the page flags the conflict instead of choosing one value as fact.

What are the minimum order quantity and lead time?

At company level both are unavailable on this site and are confirmed per model in the enquiry. A single-model note, where one exists, is marked as applying to that model only and must not be read as a company-wide term.