QSFP-4SFP10G-CU1M – 40G QSFP+ Breakout – 4x10G SFP+ DAC – 1m Length
0/mo Solds
Stable Global Supply Chain for Thriving Businesses.
- $3,000,000 Inventory
- Certified Cisco Partner ships
- Collaborating with FedEx, UPS, DHL
Established Global IT Distributor
With over a decade of industry experience, we are a certified Cisco Partner delivering genuine enterprise networking hardware and trusted services to system integrators, ISPs, and enterprises worldwide.
QSFP-4SFP10G-CU1M Description
QSFP-4SFP10G-CU1M is the Cisco 1-meter passive copper breakout cable for connecting one QSFP/QSFP+ 40G port to four SFP+ 10G ports.
This is a compact same-rack breakout part. The short length and breakout point make it useful when the QSFP port and the four SFP+ endpoints are close together, but it is the wrong choice for a straight 40G QSFP-to-QSFP link.
For quote review, confirm Cisco device compatibility, breakout port mode, physical cable route, and whether 1 meter is enough once the cable manager is included. Layer23-Switch can help check price, stock, warranty support, and shipping timing.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
QSFP-4SFP10G-CU1M |
|
Product family |
Cisco 40GBASE QSFP Modules |
|
Product type |
QSFP to four SFP+ copper breakout cable |
|
Ethernet application |
40GBASE-CR4 to four 10GBASE-CU links |
|
Cable operation |
Passive direct-attach copper cable assembly |
|
Port mapping |
One 40G QSFP/QSFP+ end to four 10G SFP+ ends |
|
Cable length |
1 meter |
|
Breakout location from 40G end |
0.33 meters |
|
QSFP-end cable gauge |
30 AWG |
|
QSFP-end cable diameter |
7 mm |
|
SFP-end cable diameter |
5 mm |
|
Minimum bend radius |
50 mm at QSFP end; 45 mm at SFP ends |
|
Jacket material |
PVC |
|
Operating temperature range |
0 to 70 degrees C |
Application Scenarios
Use QSFP-4SFP10G-CU1M when one Cisco 40G QSFP/QSFP+ port needs to break out into four 10G SFP+ connections and the endpoints are close enough for a 1 meter passive copper cable.
Select this SKU for top-of-rack or same-cabinet cabling where passive copper is preferred over optics and fiber for a short, fixed-length connection between QSFP and SFP+ ports.
Keep this 1 meter cable separate from the 0.5 meter, 3 meter, and 5 meter Cisco breakout cable PIDs during procurement, because the different lengths also change the documented breakout location from the 40G end.
Product Comparison
|
Parameter |
QSFP-4SFP10G-CU1M |
QSFP-4SFP10-CU0-5 |
QSFP-4SFP10G-CU3M |
QSFP-4SFP10G-CU5M |
|---|---|---|---|---|
|
Product type |
QSFP to four SFP+ copper breakout cable |
QSFP to four SFP+ copper breakout cable |
QSFP to four SFP+ copper breakout cable |
QSFP to four SFP+ copper breakout cable |
|
Cable operation |
Passive direct-attach copper |
Passive direct-attach copper |
Passive direct-attach copper |
Passive direct-attach copper |
|
Cable length |
1 meter |
0.5 meters |
3 meters |
5 meters |
|
Breakout location from 40G end |
0.33 meters |
0 meters |
1 meter |
2 meters |
|
QSFP-end cable gauge |
30 AWG |
30 AWG |
30 AWG |
26 AWG |
|
QSFP-end cable diameter |
7 mm |
7 mm |
7 mm |
9 mm |
|
QSFP-end bend radius |
50 mm |
50 mm |
50 mm |
50 mm |
|
SFP-end cable diameter |
5 mm |
5 mm |
5 mm |
5 mm |
|
SFP-end bend radius |
45 mm |
45 mm |
45 mm |
45 mm |
|
Jacket material |
PVC |
PVC |
PVC |
PVC |
|
Jacket color |
Black |
Black |
Black |
Black |
- QSFP-4SFP10G-CU1M is the 1 meter member of Cisco’s passive QSFP-to-4xSFP+ copper breakout cable family.
- The 0.5 meter cable places the breakout at the 40G end, while the 1 meter cable moves the breakout point to 0.33 meters from the 40G side.
- The 5 meter cable uses a larger 26 AWG QSFP-side cable and 9 mm QSFP-side diameter, so cable trays and bend space should be checked before choosing it over the 1 meter version.
Selection Guide
1. Confirm Cisco host support before quoting
Check the Cisco Optics-to-Device Compatibility Matrix for the exact switch, line card, or module that will use the QSFP side and the four SFP+ ends. Do not approve the cable from length alone.
2. Use this SKU for short passive copper breakout
Choose QSFP-4SFP10G-CU1M when the design calls for a 1 meter passive copper path from one 40G QSFP/QSFP+ port to four 10G SFP+ ports. For longer runs, compare the documented 3 meter and 5 meter PIDs instead.
3. Check port-mode configuration on the 40G side
Breakout cabling normally requires the host platform to support 4x10G breakout mode on the QSFP port. Confirm the intended port mode before finalizing the bill of materials.
4. Match the breakout point to cable management
The 0.33 meter breakout location affects how early the four SFP+ legs separate from the QSFP trunk. Confirm rack layout, latch access, bend radius, and patch-panel spacing before ordering.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Exact Product ID |
QSFP-4SFP10G-CU1M |
Separates the 1 meter cable from 0.5 meter, 3 meter, and 5 meter variants |
|
Cisco compatibility |
Target switch, module, or line card support in Cisco compatibility documentation |
Prevents ordering a cable that the host platform does not support |
|
Breakout configuration |
QSFP port supports 4x10G breakout mode |
The cable only solves the physical breakout; the port still needs the correct operating mode |
|
Physical route |
1 meter total cable length and 0.33 meter breakout point |
Confirms the cable reaches the four SFP+ endpoints without excess bend stress |
|
Endpoint plan |
One QSFP/QSFP+ port and four SFP+ ports available |
Avoids mismatched port counts during installation |
|
Commercial review |
Price, stock status, warranty support, and global shipping destination |
Aligns delivery timing with the maintenance or deployment window |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | QSFP-4SFP10G-CU1M | Product family | Cisco 40GBASE QSFP Modules |
| Product type | QSFP to four SFP+ copper breakout cable | Ethernet application | 40GBASE-CR4 to four 10GBASE-CU links |
| Cable operation | Passive direct-attach copper cable assembly | Port mapping | One 40G QSFP/QSFP+ end to four 10G SFP+ ends |
| Cable length | 1 meter | Breakout location from 40G end | 0.33 meters |
| QSFP-end cable gauge | 30 AWG | QSFP-end cable diameter | 7 mm |
| QSFP-end bend radius | 50 mm | QSFP-end face plate distance | 100 mm |
| SFP-end cable diameter | 5 mm | SFP-end bend radius | 45 mm |
| SFP-end face plate distance | 70 mm | Jacket material | PVC |
| Jacket color | Black | Pull-tab color | Beige |
| Operating temperature range | 0 to 70 degrees C | Storage temperature range | -40 to 85 degrees C |
| QSFP connector module dimensions | 13.5 x 18.4 x 72.4 mm, H x W x D | QSFP connector module typical weight | 100 g or less |
| Form-factor interface | SFF 8436 and QSFP MSA | Electrical interface reference | IEEE 802.3ba |
Get More Information
Need pricing, stock, or shipping details for the QSFP-4SFP10G-CU1M ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.
Quality Certifications
Customer Reviews
Questions & Answers
Warranty
Layer23-Switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
All items are brand new, original, and factory-sealed.
Upon request, each unit can be fully tested and verified by a Cisco CCIE-certified engineer to ensure perfect working condition before shipment.
Our Cisco CCIE-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly. Visit Return Policy page for more information.
We support multiple secure payment and logistics options, backed by industry-leading verification:
Visit How to Pay page for more information
Extended, Worry-Free Warranty Coverage Factory New Sealed Enterprise Hardware:
· 3 Years Factory New Sealed
Visit Warranty Policy page for more information
Device Authenticity & Lifecycle Verification
Verify Cisco hardware by serial number and check lifecycle status before deployment.
Standard Services
Personalized Service, Superior Product Maintenance for Ultimate Satisfaction.
- Projects and Technical Support
- Easy Purchasing Supply
- Product Lifecycle Protection
- Exclusive F3 Team Support
Customized Support for Your Needs with CCIE, HCIE, HPE ASE, etc.
Their post-sale care made me confident about placing future orders. Would have liked a tracking update sooner, but the product is great.
Loyalty programs aren’t needed when the service is this good. We just keep coming back.
Sales team was knowledgeable — not just order takers.