The Mellanox SX6036 is a 36 ports switch that support both infinitband and price is very good on ebay. (I bought mine at $200 + $50 for the ethernet activation) Manual: https://delivery04.dhe.ibm.com/sar/CMA/XSA/MLNX-OS_VPI_v3_4_3002_UM.pdf reset the device in case the previous password is still there Press the RST key and wait. (Note, it takes almost 3 minutes to reset mine instead of 15s as memtioned in the manual). After the reset, the password would be admin/admin.