[root@localhost ~]# ethtool -m p4p2
Identifier                     : 0x03 (SFP)
Extended identifier            : 0x04 (GBIC/SFP defined by 2-wire interface ID)
Connector                      : 0x0b (Optical pigtail)
Transceiver codes              : 0x00 0x00 0x00 0x00 0x00 0x08 0x00 0x00
Transceiver type               : Active Cable
Encoding                       : 0x03 (NRZ)
BR, Nominal                    : 25500MBd
Rate identifier                : 0x00 (unspecified)
Length (SMF,km)                : 0km
Length (SMF)                   : 0m
Length (50um)                  : 0m
Length (62.5um)                : 0m
Length (Copper)                : 7m
Length (OM3)                   : 0m
Active Cu cmplnce.             : 0x03 (unknown) [SFF-8472 rev10.4 only]
Vendor name                    : Intel Corp
Vendor OUI                     : 00:1b:21
Vendor PN                      : LTF8505-BC-IN
Vendor rev                     : 2.1
Option values                  : 0x08 0x1a
Option                         : RX_LOS implemented
Option                         : TX_FAULT implemented
Option                         : TX_DISABLE implemented
Option                         : Retimer or CDR implemented
BR margin, max                 : 103%
BR margin, min                 : 0%
Vendor SN                      : T0387N0254Z
Date code                      : 210724
Optical diagnostics support    : Yes