OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT 400G OSFP 4 x 100G PAM4 RHS/Flat Top Passive Copper Twinax Cable, 1.5m (5ft)
The OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT compatible assembly is intended for Generic equipment that requires a 400G direct-attached connection. This version is specifically 1.5m (5ft), with OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top) and its own order reference. Exact length pages and equivalent brand references are linked to make multi-product procurement easier to verify.
OEM Part Number: OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FTHT Part Number: OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT
Product Highlights
- HT-manufactured DAC assembly in 1.5m (5ft)
- 400G connectivity at 400Gbps
- Interface configuration: OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)
- Fixed length and part number: 1.5m (5ft), OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT
- Cable construction: Passive Twinax
- Conductor specification: 28AWG
- Maximum power consumption: 0.1W
- Minimum bend radius: 40.5mm
Specifications
| HT Part Number | OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top) |
| Max Data Rate | 400Gbps |
| Media | Copper |
| Cable Type | Passive Twinax |
| Cable Length | 1.5m (5ft) |
| Wire AWG | 28AWG |
| Minimum Bend Radius | 40.5mm |
| Max. Power Consumption | 0.1W |
| Jacket Material | PVC (OFNR) |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | OSFP MSA, CMIS Rev4.0, IEEE 802.3cd |
| Modulation Format | 4x 100G-PAM4 |
Signal and Lane Configuration
The listed modulation format is 4x 100G-PAM4. 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.
Power and Thermal Planning
The rated power consumption is 0.1W. 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.
Cable Construction and Routing
This assembly uses 28AWG conductors, PVC (OFNR) jacket, minimum bend radius 40.5mm. 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 determined by the host interface and protocol support. Listed interface and protocol references include OSFP MSA, CMIS Rev4.0, IEEE 802.3cd. Confirm that the host firmware and port configuration support the same operating mode.
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
The additional half metre beyond a one-metre assembly gives OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT useful routing flexibility when the ports are not directly aligned. It can accommodate a different rack unit or a short service loop, but excess cable should be dressed loosely rather than folded into a tight coil.
Position Within the Length Range
OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT occupies the middle of this family between OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT at 1m (3ft) and OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-2M7FT at 2m (7ft). It adds 0.5m over the shorter option for extra routing clearance, while the next longer version adds another 0.5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
Procurement and Port-Mapping Review
A useful purchase order should identify the host platform, the expected OEM code and the exact cable length as separate pieces of information. This prevents a physically similar assembly from being substituted when the port identification or reach is different. For mixed-length installations, prepare one order line per part number and reconcile each delivered cable with its intended pair of ports. For this assembly, the listed conductor specification is 28AWG; the minimum bend radius is 40.5mm; the stated power consumption is 0.1W; the jacket material is PVC (OFNR).
Generic Compatibility and Factory Testing
Our procurement-oriented compatibility check begins with the OEM reference and ends with a live host link. We record the physical length separately from the identification configuration, so the cable supplied for this page remains the stated version rather than a generic length substitute. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
Ordering Information
For a clear bill of materials, quote the OEM reference, HT part number, length and quantity on the same line. Add the switch or server model and software release when a pre-order review is required; project labels can repeat those details for receiving and installation teams. Keep OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT associated with 1.5m (5ft) throughout the order and receiving record.
Quality Assurance and Packaging
Before packing, the assembly is checked for connector condition, identification and link operation. Cables for multi-line orders can be labelled and grouped by part number, making it easier to match each length to the procurement record without opening every protective bag. Standard protective packing is used by default, with project documentation arranged when requested.
Frequently Asked Questions
Is this an original equipment manufacturer cable?
No. It is manufactured by HT under our own manufacturer identity.
Does this order code cover multiple lengths?
No. OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT refers here to 1.5m (5ft). 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.
Can excess cable be folded into a compact bundle?
No. Use a supported, bend-safe service loop and observe the listed minimum bend radius. Do not crease the cable or tighten ties around the connector boots.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. 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.