Written brief
The form on this page is the controlled channel. It keeps data rate, connector, length, and destination in one place.
WRITE TO THE DESK
LinkScope Sourcing 03
The short dialog elsewhere on the site is a compact inquiry. This page is the full path: how a QSFP cable note is read, which channels exist, and the form that stores the specification. Bring cage, lane rate, length, quantity, US destination, and timing.
Reply path
Answers return to the work email you type. No separate mailbox is published, so there is no second address to guess.
Hours
Notes are read on US business days. A timestamp is not a ship date. Lead time stays with the supplier who names the part.
What is absent
No phone line and no social account are used for quotations. A call would drop AWG, coding, and FEC questions the comparison needs.
How the note moves
- You submit specification, quantity, destination, and timing.
- The desk checks whether cage, ends, length, and host are complete enough to send outward.
- Factories that receive the packet answer on that basis. Deviations come back as deviations.
- You compare the replies. The desk does not select the factory.
Do not treat a pin on a public map as this desk. The illustration is a review bench, not a street address. An optional budget needs a currency and a per-assembly or whole-order basis. High-end, mid-range, budget, or undecided is a preference, not a verified score, and a live quotation is not required before you write.
Fields worth typing before the price question
QSFP+, QSFP28, QSFP56, or QSFP-DD. Straight or breakout. Meters. AWG if copper. Wavelength, fiber mode, and optical budget if the path is glass. Insertion loss, return loss, impedance, power in watts for active ends, and the temperature band you need confirmed, often discussed as 0 °C to 70 °C until a datasheet replaces it. Quantity and the US dock. If a drawing will not fit, say so in the requirement field. The form has no upload control.
OEM-coded memory can follow a vendor support policy more closely, while a compatible code can widen the plants you ask if that host software accepts the EEPROM. A new assembly can show a clearer warranty path, while a surplus lead can cover a legacy cage when condition is stated. Single-mode glass can suit a longer hall when the module matches the plant, and multimode glass can suit a shorter hall near 850 nm rather than 1310 nm. Those are choices to write down, not results this desk measured. Checked references on 2026-10-27, the ITU-T optical-fibre index and the IEEE 802 overview are question sources. They do not certify the assembly you will buy. Connector mating cycles matter when leads are reseated in test. Leave unknown cells blank rather than guessing. The 100G planner is a checklist you can copy from if that rate is the one in the cage.