$ uhd_usrp_probe 
[INFO] [UHD] linux; GNU C++ version 9.4.0; Boost_107100; DPDK_19.11; UHD_4.4.0.0-33-g4a77791c
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/FIR#0] Setting default MTU forward policy.
[INFO] [0/FIR#1] Setting default MTU forward policy.
  _____________________________________________________
 /
|       Device: X-Series Device
|     _____________________________________________________
|    /
|   |       Mboard: X300
|   |   revision: 12
|   |   revision_compat: 7
|   |   product: 30817
|   |   mac-addr0: 00:80:2f:37:db:e5
|   |   mac-addr1: 00:80:2f:37:db:e6
|   |   gateway: 192.168.10.1
|   |   ip-addr0: 192.168.10.2
|   |   subnet0: 255.255.255.0
|   |   ip-addr1: 192.168.20.2
|   |   subnet1: 255.255.255.0
|   |   ip-addr2: 192.168.30.2
|   |   subnet2: 255.255.255.0
|   |   ip-addr3: 192.168.40.2
|   |   subnet3: 255.255.255.0
|   |   serial: 328C972
|   |   FW Version: 6.1
|   |   FPGA Version: 39.2
|   |   FPGA git hash: fffffff-dirty
|   |   RFNoC capable: Yes
|   |   
|   |   Time sources:  internal, external, gpsdo
|   |   Clock sources: internal, external, gpsdo
|   |   Sensors: ref_locked
|     _____________________________________________________
|    /
|   |       RFNoC blocks on this device:
|   |   
|   |   * 0/AddSub#0
|   |   * 0/DDC#0
|   |   * 0/DDC#1
|   |   * 0/DUC#0
|   |   * 0/DUC#1
|   |   * 0/FIR#0
|   |   * 0/FIR#1
|   |   * 0/NullSrcSink#0
|   |   * 0/Radio#0
|   |   * 0/Radio#1
|     _____________________________________________________
|    /
|   |       Static connections on this device:
|   |   
|   |   * 0/SEP#3:0==>0/DUC#0:0
|   |   * 0/DUC#0:0==>0/Radio#0:0
|   |   * 0/Radio#0:0==>0/DDC#0:0
|   |   * 0/DDC#0:0==>0/SEP#0:0
|   |   * 0/Radio#0:1==>0/DDC#0:1
|   |   * 0/DDC#0:1==>0/SEP#1:0
|   |   * 0/SEP#2:0==>0/DUC#1:0
|   |   * 0/DUC#1:0==>0/Radio#1:0
|   |   * 0/Radio#1:0==>0/DDC#1:0
|   |   * 0/DDC#1:0==>0/SEP#2:0
|   |   * 0/SEP#4:0==>0/FIR#0:0
|   |   * 0/SEP#5:0==>0/FIR#1:0
|   |   * 0/FIR#0:0==>0/SEP#4:0
|   |   * 0/FIR#1:0==>0/SEP#5:0
|   |   * 0/SEP#6:0==>0/AddSub#0:0
|   |   * 0/SEP#7:0==>0/AddSub#0:1
|   |   * 0/AddSub#0:0==>0/SEP#8:0
|   |   * 0/AddSub#0:1==>0/NullSrcSink#0:0
|     _____________________________________________________
|    /
|   |       TX Dboard: 0/Radio#0
|   |   ID: LF TX (0x630e)
|   |   Serial: 3253F17
|   |     _____________________________________________________
|   |    /
|   |   |       TX Frontend: 0
|   |   |   Name: LFTX (0)
|   |   |   Antennas: AB, BA, A, B
|   |   |   Sensors: 
|   |   |   Freq range: -32.000 to 32.000 MHz
|   |   |   Gain Elements: None
|   |   |   Bandwidth range: 64000000.0 to 64000000.0 step 0.0 Hz
|   |   |   Connection Type: IQ
|   |   |   Uses LO offset: No
|     _____________________________________________________
|    /
|   |       RX Dboard: 0/Radio#0
|   |   ID: LF RX (0x630f)
|   |   Serial: 30DDF1D
|   |     _____________________________________________________
|   |    /
|   |   |       RX Frontend: 0
|   |   |   Name: LFRX (0)
|   |   |   Antennas: AB, BA, A, B
|   |   |   Sensors: 
|   |   |   Freq range: -32.000 to 32.000 MHz
|   |   |   Gain Elements: None
|   |   |   Bandwidth range: 64000000.0 to 64000000.0 step 0.0 Hz
|   |   |   Connection Type: IQ
|   |   |   Uses LO offset: No
|   |     _____________________________________________________
|   |    /
|   |   |       RX Frontend: 1
|   |   |   Name: LFRX (1)
|   |   |   Antennas: AB, BA, A, B
|   |   |   Sensors: 
|   |   |   Freq range: -32.000 to 32.000 MHz
|   |   |   Gain Elements: None
|   |   |   Bandwidth range: 64000000.0 to 64000000.0 step 0.0 Hz
|   |   |   Connection Type: IQ
|   |   |   Uses LO offset: No
|     _____________________________________________________
|    /
|   |       TX Dboard: 0/Radio#1
|   |   ID: LF TX (0x630e)
|   |   Serial: 324FED4
|   |     _____________________________________________________
|   |    /
|   |   |       TX Frontend: 0
|   |   |   Name: LFTX (0)
|   |   |   Antennas: AB, BA, A, B
|   |   |   Sensors: 
|   |   |   Freq range: -32.000 to 32.000 MHz
|   |   |   Gain Elements: None
|   |   |   Bandwidth range: 64000000.0 to 64000000.0 step 0.0 Hz
|   |   |   Connection Type: IQ
|   |   |   Uses LO offset: No
|     _____________________________________________________
|    /
|   |       RX Dboard: 0/Radio#1
|   |     _____________________________________________________
|   |    /
|   |   |       RX Frontend: 0
|   |   |   Name: Unknown (0xffff) - 0
|   |   |   Antennas: 
|   |   |   Sensors: 
|   |   |   Freq range: 0.000 to 0.000 MHz
|   |   |   Gain Elements: None
|   |   |   Bandwidth range: 0.0 to 0.0 step 0.0 Hz
|   |   |   Connection Type: IQ
|   |   |   Uses LO offset: No