Arista C-Z100-Q100-2M Compatible 100G SFP-DD 2 x 50G PAM4 to QSFP56 2 x 50G PAM4 Passive Copper Twinax Cable, 2m (7ft)

The C-Z100-Q100-2M cable offers a direct SFP-DD to QSFP56 connection at 100Gbps. Its 2m (7ft) length and DAC construction are intended for Arista equipment, with no separate transceiver-and-patch-cord assembly required.

OEM Part Number: C-Z100-Q100-2MHT Part Number: C-Z100-Q100-2M

Product Highlights

• Compatible alternative to Arista C-Z100-Q100-2M
• 100G connectivity at 100Gbps
• Interface configuration: SFP-DD to QSFP56
• Fixed length and part number: 2m (7ft), C-Z100-Q100-2M
• Cable construction: Passive Twinax
• Conductor specification: 28AWG
• Maximum power consumption: 0.1W
• Minimum bend radius: 17mm

The listed modulation format is SFP-DD-2x 50G-PAM4QSFP56-2x 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.

C-Z100-Q100-2M provides 2m (7ft) for connections between separated rack units or nearby equipment positions. Plan the route around cable managers and power cords, keeping the assembly free from connector strain while avoiding a large obstruction in the airflow path.

C-Z100-Q100-2M occupies the middle of this family between C-Z100-Q100-1M at 1m (3ft) and C-Z100-Q100-3M at 3m (10ft). It adds 1m over the shorter option for extra routing clearance, while the next longer version adds another 1m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

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.

This assembly uses 28AWG conductors, PVC (OFNR) jacket, minimum bend radius 17mm. 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.

The intended application is 100G Ethernet, 128G Fibre Channel. Listed interface and protocol references include SFPDD: SFP-DD MSA, SFP-DD MIS, IEEE 802.3cdQSFP56: SFF-8661, SFF-8636, IEEE 802.3cd. Confirm that the host firmware and port configuration support the same operating mode.

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.

The HT cable carries the compatibility configuration associated with C-Z100-Q100-2M, while its mechanical assembly remains the fixed 2m (7ft) version described here. Incoming inspection, connector examination and a live link test are completed before packing. Customers with unusually old or new Arista software can request a pre-order check.

Quote HT part number C-Z100-Q100-2M with the required quantity. The 2m (7ft) length is fixed for this part number; if a different length is needed, select its corresponding page and OEM reference from the length list above. Standard HT labels and project-specific packaging are available.

Quality control includes connector appearance, cable identification and functional verification. Packing materials are selected to keep the connector housings and cable boots from taking impact during transport, and the coil is not compressed into an undersized bundle. Volume orders can include customer-specific labels and packing documentation.

Standard configurations normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.