QSFP28 to 4x SFP28-100G-DAC-7M23FTQSFP28 to 4x SFP28-100G-DAC-7M23FT 100G QSFP28 4 x 25G NRZ to 4 x 25G SFP28 NRZ Active Copper Breakout Cable, 7m (23ft)
For densely populated equipment, the fixed 7m (23ft) version of Generic QSFP28 to 4x SFP28-100G-DAC-7M23FT offers a clearly defined 100G link without separate optical modules or patch cords. The DAC assembly uses QSFP28 to 4x SFP28; its power, mechanical and diagnostic details are listed where supplied so port density and cable management can be assessed together.
OEM Part Number: QSFP28 to 4x SFP28-100G-DAC-7M23FTHT Part Number: QSFP28 to 4x SFP28-100G-DAC-7M23FT
Product Highlights
- HT-manufactured DAC assembly in 7m (23ft)
- 100G connectivity at 100Gbps
- Interface configuration: QSFP28 to 4x SFP28
- Fixed length and part number: 7m (23ft), QSFP28 to 4x SFP28-100G-DAC-7M23FT
- Cable construction: Active Breakout DAC
- Conductor specification: 26AWG
- Maximum power consumption: 1.8W
- Minimum bend radius: 44.5mm
Specifications
| HT Part Number | QSFP28 to 4x SFP28-100G-DAC-7M23FT |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 to 4x SFP28 |
| Max. Data Rate | 100Gbps |
| Media | Copper |
| Cable Type | Active Breakout DAC |
| Cable Length | 7m (23ft) |
| Jacket Material | PVC (OFNR) |
| Minimum Bend Radius | 44.5mm |
| Wire AWG | 26AWG |
| Max. Power Consumption | 1.8W |
| Modulation Format | QSFP28-4x 25G-NRZ SFP28-1x 25G-NRZ |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Application | 100G/25G Ethernet |
| Protocols | QSFP28 MSA, SFP28 MSA, SFF-8665, SFF-8679, SFF-8472, SFF-8402 |
Signal and Lane Configuration
The listed modulation format is QSFP28-4x 25G-NRZ SFP28-1x 25G-NRZ. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.
Cable Construction and Routing
This assembly uses 26AWG conductors, PVC (OFNR) jacket, minimum bend radius 44.5mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.
Network and Protocol Considerations
The intended application is 100G/25G Ethernet. Listed interface and protocol references include QSFP28 MSA, SFP28 MSA, SFF-8665, SFF-8679, SFF-8472, SFF-8402. Confirm that the host firmware and port configuration support the same operating mode.
Breakout Port Mapping
The QSFP28 to 4x SFP28 configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.
Passive Copper Operation
A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.
Length Selection and Installation Planning
Extended reach changes the installation checks for QSFP28 to 4x SFP28-100G-DAC-7M23FT. Confirm that 7m (23ft) follows the intended route without tension, then verify that intermediate supports do not squeeze the jacket or hide the connectors behind adjacent cables. Both hosts must still match the stated interface and lane configuration. Within this family, QSFP28 to 4x SFP28-100G-DAC-5M16FT is shorter at 5m (16ft), while QSFP28 to 4x SFP28-100G-DAC-9M29FT is the next longer choice at 9m (29ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
Position Within the Length Range
QSFP28 to 4x SFP28-100G-DAC-7M23FT occupies the middle of this family between QSFP28 to 4x SFP28-100G-DAC-5M16FT at 5m (16ft) and QSFP28 to 4x SFP28-100G-DAC-9M29FT at 9m (29ft). It adds 2m over the shorter option for extra routing clearance, while the next longer version adds another 2m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
High-Density Rack Integration
In a densely populated rack, connector access and airflow are part of the link design. Choose the shortest length that follows the managed path comfortably, avoid tight bundles around the connector housings and preserve room for latch operation. Where power consumption is listed, include every populated interface in the host thermal budget rather than assessing a single cable in isolation. For this assembly, the listed conductor specification is 26AWG; the minimum bend radius is 44.5mm; the stated power consumption is 1.8W; the jacket material is PVC (OFNR).
Power and Thermal Planning
The rated power consumption is 1.8W. Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.
Quality Assurance and Packaging
Each assembly receives a visual connector inspection and functional link check before it is coiled and protected. Packaging is selected to avoid compressing the cable into a tight bundle, and optional rack-based labels help maintain an orderly installation when many identical interfaces are populated together. Standard protective packing is used by default, with project documentation arranged when requested.
Ordering Information
Provide the exact part number, length, quantity and target interface density. For multi-rack projects, list each length separately and identify any preferred carton grouping. Host model and software information can be included for a compatibility review before production or dispatch. Keep QSFP28 to 4x SFP28-100G-DAC-7M23FT associated with 7m (23ft) throughout the order and receiving record.
Generic Compatibility and Factory Testing
The assembly is evaluated for host recognition and stable link operation, with diagnostics checked where the interface provides them. This approach verifies more than electrical or optical continuity. Exact platform and firmware information remains valuable in high-density deployments because port mode and qualification policy can differ within the same connector family. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
Frequently Asked Questions
Is this an original equipment manufacturer cable?
No. It is manufactured by HT under our own manufacturer identity.
Can different brands be connected with the same assembly?
Only where both hosts explicitly support the complete interface and compatibility arrangement. Document each end and select the appropriate brand-specific product when required.
Does this order code cover multiple lengths?
No. QSFP28 to 4x SFP28-100G-DAC-7M23FT refers here to 7m (23ft). Every other verified length has a separate part number and page in the length list.
Are separate transceivers or patch leads required?
No. This is one complete direct-attach assembly. The ends are not detachable modules and should not be separated from the cable.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production quantities confirmed at order stage. Delivery can be arranged by courier, air freight or sea freight, and goods may instead be handed to an appointed forwarder or shipped on the customer’s courier account.
