RoutersWholesale Brand Dell PowerConnect 6X177 Compatible1U Rack Mount Kit, P/N 6X177, includes two new rack ears and 16 screws (2 sets of different sizes: only 8 are pictured). Does not include rack cage nuts or screws for attaching to the rack. This rack mount kit is not compatible with the PowerConnect 3424P, 3448P, 3524P, 3548P, 5524P, 5548P. Search for Dell WJ690 to find that part. Compatibility These rack mount kits are compatible with the following Dell PowerConnect models (and part numbers for those models): 2748 (XP166, UY486) 2848 (Y953J, F496K) 3048 (1T144) 3424 (XJ505, TF096, UJ393, D5684, X5388) 3448 (YJ045, TJ930, G5043) 3524 (P486K, J322F) 3548 (M725K, GY466, H984F) 5324 (UJ371, FC762, Y4657, HC276, R7768) 5424 (M023F) 5448 (H969F) Note: Dell may have other part codes for the switches than what are listed here, but all should remain compatible with the rack mount kit.