QSFP 112 to QSFP 112-400G-DAC-0.5M2FT 400G QSFP112 4 x 100G PAM4 Passive Copper Twinax Cable, 0.5m (2ft)
For buyers working from an equipment parts list, QSFP 112 to QSFP 112-400G-DAC-0.5M2FT identifies more than a connector style. It refers here to a 0.5m (2ft) DAC cable for Generic hosts, supporting 400G operation with QSFP 112 to QSFP 112. The sections below separate the OEM cross-reference, physical specification and HT factory checks for straightforward purchasing review.
OEM Part Number: QSFP 112 to QSFP 112-400G-DAC-0.5M2FTHT Part Number: QSFP 112 to QSFP 112-400G-DAC-0.5M2FT
Product Highlights
- HT-manufactured DAC assembly in 0.5m (2ft)
- 400G connectivity at 400Gbps
- Interface configuration: QSFP 112 to QSFP 112
- Fixed length and part number: 0.5m (2ft), QSFP 112 to QSFP 112-400G-DAC-0.5M2FT
- Cable construction: Passive Twinax
- Conductor specification: 30AWG
- Maximum power consumption: 0.1W Per End
- Minimum bend radius: 46mm
Specifications
| HT Part Number | QSFP 112 to QSFP 112-400G-DAC-0.5M2FT |
|---|---|
| Manufacturer | HT |
| Connector Type | QSFP 112 to QSFP 112 |
| Max. Data Rate | 400Gbps |
| Minimum Bend Radius | 46mm |
| Wire AWG | 30AWG |
| Cable Length | 0.5m (2ft) |
| Jacket Material | PET |
| Cable Type | Passive Twinax |
| Compatible | Generic |
| Max. Power Consumption | 0.1W Per End |
| Power Supply | 3.3V |
| Temperature | 0 to 70°C (32 to 158°F) |
| Application | 400G Ethernet |
| Modulation Technology | 4x106.25Gb/s PAM4 |
| Protocol | CMIS 5.0SFF-8024 |
Power and Thermal Planning
The rated power consumption is 0.1W Per End. 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 30AWG conductors, PET jacket, minimum bend radius 46mm. 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 400G Ethernet.
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 0.5m (2ft) length is suited to closely aligned ports where excessive slack would obstruct airflow or complicate dressing. Measure the actual port-to-port path before choosing QSFP 112 to QSFP 112-400G-DAC-0.5M2FT; even a short assembly must retain the specified bend radius and should never be pulled tight behind the equipment.
Position Within the Length Range
QSFP 112 to QSFP 112-400G-DAC-0.5M2FT is the shortest of 3 verified length options in this family. It is the preferred choice when the port positions are close and cable slack must be kept to a minimum. The next option is QSFP 112 to QSFP 112-400G-DAC-1M3FT at 1m (3ft), adding 0.5m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.
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 30AWG; the minimum bend radius is 46mm; the stated power consumption is 0.1W Per End; the jacket material is PET.
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. Both connectors are examined before the operating test, which includes link stability and diagnostic indications.
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. This page’s fixed configuration is 0.5m (2ft); another length must be quoted under its corresponding part number.
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. Neutral packaging and customer-specific packing documentation are available on request.
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. QSFP 112 to QSFP 112-400G-DAC-0.5M2FT refers here to 0.5m (2ft). 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. Worldwide courier services are available, with air or sea freight for consolidated shipments; freight-collect delivery and coordination with a customer’s logistics provider can be arranged.