Hi, as far as I know from HPE Aruba documentation (various sources) the 5G Smart Rate (multi-Gigabit) ports support on Aruba CX 6400 Switch series means the support of: 5GBASE-T, 2.5GBASE-T, 1000BASE-T and 100BASE-TX modes of operation over Twisted-Pair Copper cabling.
The 5GBASE-T and 2.5GBASE-T (SmartRate) modes support both IEEE 802.3bz and NBASE-T modes of operation to maximize compatibility during deployment.
Given that, the R0X41C module (the SKU for "HPE Aruba Networking CX 6400 48-port HPE Smart Rate 1/2.5/5GbE Class6 PoE and 4-port SFP56 v2 Module") should support speed ranging from a lower limit of 100 Mbps up to the higher limit of 5 Gbps over copper (considering a supporting peer and cabling).
With regard to the 48-port 1GbE Class 6 PoE and 4-port SFP56 v2 Module (R0X40C), the 1000BASE-T ports support should mean: 1 Gbpss, 100 Mbps and 10 Mbps modes of operation over Twisted-Pair Copper cabling (the 100BASE-TX and the 10BASE-T modes both support Full-Duplex and Half-Duplex operation).
-------------------------------------------
Original Message:
Sent: Dec 19, 2025 09:46 AM
From: _rh_
Subject: 6400 module data sheets?
HI team,
I'm looking for data sheets for the 6400 line cards, like R0X40C and R0X41C. Specifically, I'm curious what modules support 100M client connections. It's not clear from the quick specs that the R0X41C does. Any pointers to more detailed information on all the modules beyond the basic descriptions in the 6400 data sheet and quick specs would be helpful.
Thanks!
-------------------------------------------