Arista Networks A-Q200-Q200-50M Compatible 200G QSFP56 4 x 50G PAM4 Active Optical Cable, 50m (164ft)
For buyers working from an equipment parts list, A-Q200-Q200-50M identifies more than a connector style. It refers here to a 50m (164ft) AOC cable for Arista Networks hosts, supporting 200G operation with QSFP56 to QSFP56. The sections below separate the OEM cross-reference, physical specification and HT factory checks for straightforward purchasing review.
OEM Part Number: A-Q200-Q200-50MHT Part Number: A-Q200-Q200-50M
Product Highlights
- Compatible alternative to Arista Networks A-Q200-Q200-50M
- 200G connectivity at 200Gbps
- Interface configuration: QSFP56 to QSFP56
- Fixed length and part number: 50m (164ft), A-Q200-Q200-50M
- Cable construction: AOC
- Maximum power consumption: 4.35W Per End
- Minimum bend radius: 30mm
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HT Part Number | A-Q200-Q200-50M |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP56 to QSFP56 |
| Max. Data Rate | 200Gbps |
| Cable Length | 50m (164ft) |
| Cable Type | AOC |
| Wavelength | 850nm |
| Minimum Bend Radius | 30mm |
| Transmitter Type | VSCEL |
| Receiver Type | PIN |
| Max. Power Consumption | 4.35W Per End |
| Modulation Format | 4x 50G-PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Jacket Material | LSZH |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3, QSFP56 MSA, SFF-8665, SFF-8636 |
| MTBF | ≈3.2 Million Hours |
Signal and Lane Configuration
The listed modulation format is 4x 50G-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.
Position Within the Length Range
A-Q200-Q200-50M occupies the middle of this family between A-Q200-Q200-30M at 30m (98ft) and A-Q200-Q200-100M at 100m (328ft). It adds 20m over the shorter option for extra routing clearance, while the next longer version adds another 50m. 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 minimum bend radius is 30mm; the stated power consumption is 4.35W Per End; the jacket material is LSZH.
Power and Thermal Planning
The rated power consumption is 4.35W 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 LSZH jacket, minimum bend radius 30mm. 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 IEEE 802.3, QSFP56 MSA, SFF-8665, SFF-8636. Confirm that the host firmware and port configuration support the same operating mode.
Integrated Optical Assembly
The optical engines and fiber are permanently integrated into this AOC. There are no detachable optical modules to clean or exchange. Handle the complete assembly by its connector housings and cable, and keep both ends matched to the same interface specification.
Length Selection and Installation Planning
Choose A-Q200-Q200-50M when the measured managed path justifies 50m (164ft), not simply to leave a large spare coil. Additional reach can simplify adjacent-rack routing, yet unused cable still needs bend-safe storage and ventilation clearance. Keep identification visible so this extended version is not confused with shorter spares. Within this family, A-Q200-Q200-30M is shorter at 30m (98ft), while A-Q200-Q200-100M is the next longer choice at 100m (328ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
Arista Networks 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. Where supported by the host, receive activity and diagnostic indications are reviewed together with the established link.
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 50m (164ft); 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 Arista Networks cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies Arista Networks A-Q200-Q200-50M.
Will any matching connector operate at the same speed?
Not necessarily. Both hosts must support the stated rate, identification, lane mapping and any required breakout configuration; mechanical compatibility alone is insufficient.
What details assist a compatibility review?
Provide the equipment manufacturer, model, port type, hardware revision and software release, together with the OEM reference, required length and quantity.
How should an unused assembly be stored?
Protect both connector ends, keep the cable in a loose bend-safe coil and retain its part-number label so the length and compatibility identity remain traceable.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. International express, air cargo and sea freight can be selected according to destination and carton volume; customer courier accounts and nominated forwarders are also accepted.