The 0551 or 7014-T00 provide a 1.8 meter rack (36 EIA units of total space). The 7014-T42 or 0553 provides a 2.0 meter rack (42 EIA units of total space).
The various configurations for the 0551, 7014, 0553 and 0555 racks are:
9406 feature code 7884, 9111 rack content specify code 0229 - 9406-520 and 9111-520 in rack

| IBM® rack | 05511, 05531, 701413, 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 7884, 0229 |
| PDU support | 0 to 42 |
| Power cords | 7884, PDU3 |
9113 rack content, specify code 0230; 9406 rack content, specify code 7886

| IBM rack | 701413 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 0230 (9113-550), 7886 (9406-550) |
| PDU support | 0 to 42 |
| Power cords | PDU4 |
9406-570 in rack, 9117-570 rack content, specify codes 0231, 0232, 0241, 0242

| IBM rack | 05511, 05531, 701413, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 0231, 0232, 0241, 0242 |
| PDU support | 0 to 42 |
| Power cords | PDU4 |
Feature code 0123 - 5074 lower expansion unit in rack; Feature code 0574 - 5074 equivalent

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | 0123 |
| Rack, specify code | 0574 |
| PDU support | 0 to 42 |
| Power cords | 0123, 0574, PDU5 |
Feature code 0694 - 5094 equivalent

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 0694 |
| PDU support | 0 to 42 |
| Power cords | 0694, PDU6 |
Feature code 0133 - Manufacturing install in rack (models 9406-800 and 9406-810); Feature code 0137 - Field install in rack (models 9406-800 and 9406-810)

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 01339, 01379 |
| PDU support | 0 to 42 |
| Power cords | 0133, 0137, PDU4 |
Feature code 0134 - Field install in rack (model 9406-825); Feature code 0138 - Field install in rack (model 9406-825)

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 013410, 013810 |
| PDU support | 0 to 42 |
| Power cords | 0134, 0138, PDU4 |
Feature code 0578 - PCI-X expansion unit in rack

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 0578 |
| PDU support | 0 to 42 |
| Power cords | PDU8 |
Feature code 0588 - PCI-X expansion unit in rack

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 0588 |
| PDU support | 0 to 42 |
| Power cords | PDU12 |
Feature code 0595 - PCI-X expansion unit in rack

| IBM rack | 05511, 05531, and 0555 |
| Top rack, specify code | |
| Bottom rack, specify code | |
| Rack, specify code | 0595 |
| PDU support | 0 to 42 |
| Power cords | 0595, PDU11 |