Five metal rings define this model
The catalogue identifies SP-CM-21 by its five metal rings and 19-inch 1U rack format. Use the model code with the rack elevation; the source does not specify a supported cord count.


Rack / Open-Ring Cable Management
SP-CM-21 is the catalogue's 19-inch 1U metal cable manager with five metal rings. Compare the four-ring SP-CM-20 and five-plastic-ring SP-CM-22 before choosing the routing layout. Ring opening dimensions, usable depth and supplied fixing hardware are not stated in the source.
Performance, standards, environmental rating, certification, MOQ, and lead time are confirmed against the exact construction and order requirement.
View source catalogue · page 11 ↗Product overview
The catalogue identifies SP-CM-21 by its five metal rings and 19-inch 1U rack format. Use the model code with the rack elevation; the source does not specify a supported cord count.
SP-CM-20 has four metal rings. SP-CM-22 has five plastic rings. These are separate catalogue models, not interchangeable material options under one SP-CM-21 order.
Provide cable outside diameters, routing direction and the available rack depth. Request the exact ring openings, mounting drawing and fixing-parts list before approving fit.
Selection & supplied configuration
Choose the catalogue construction first, then confirm the dimensions and supplied parts against your rack drawing.
SUNPU connectivity catalogue / PDF page 11 ↗SP-CM-21
Compare when the rack plan calls for four routing rings instead of five.
A separate five-ring catalogue model with plastic rings; confirm its dimensions independently.
Model-specific purchase brief
This page identifies the current SUNPU catalogue reference. The final order remains tied to the approved construction, option list, documents, quantity, packaging, and destination requirement.
Factory handling
The product name starts the conversation. The approved construction and order record define what is actually supplied.
SP-CM-21 five-metal-ring catalogue construction, Cord outside diameters, quantities and routing direction to review, Ring opening, depth and mounting drawing to confirm are reviewed before the model is released for production.
Length, color, print, labels, packaging, quantity, and destination notes stay with the order specification.
Available test records and compliance documents are confirmed for the exact construction, not borrowed from a related family item.
Published catalogue models
These codes and descriptions are transcribed from the supplied SUNPU catalogue. Final performance, construction, and documents remain subject to exact-model confirmation.
| Item code | Catalogue description |
|---|---|
| SP-CM-21 | METAL TYPE |
Specifications
Configuration options
Use these fields to turn a broad product name into an orderable configuration.
Compatibility checklist
Check the 19-inch 1U position against the rack elevation
Check actual cord diameters and bend limits against an approved ring drawing
Confirm front clearance, neighbouring equipment and supplied fixing parts; no fill capacity is inferred
Typical applications
RFQ checklist
Attach a BOQ, drawing, reference sample, or target datasheet whenever available.