Cisco C9550 Series Smart Switches Hardware Installation Guide

Standard and optional accessory kit contents

Updated: July 17, 2026

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Describes the standard and optional accessory kits that are available with the Cisco C9550 switch.

This section provides information about the standard accessory kit that ships along with the Cisco C9550 Series Smart switches and also the optional accessory kits that are available for ordering separately.

1RU accessory kits

The standard accessory kit contains the switch you ordered and other components needed for installation. Based on the switch that you have ordered, you will receive the IRU or 2RU accessory kit.

Optional accessory kits must be ordered separately.

Standard accessory kit

Note

Verify that you have received these items. If any item is missing or damaged, contact your Cisco representative or reseller for instructions.

The Cisco C9550 1RU Series Smart Switches ship with a standard accessory kit.

Table 1. 19-inch standard accessory kit
Switch model	Accessory kit part number
Cisco C9550 1RU Series Smart Switch	C9550-1U-ACKT-19I= Cisco C9550 1RU series 19-inch rack mount kit

This table lists the contents of the 1RU standard accessory kit.

Table 2. C9550-1U-ACKT-19I= contents
Item	Quantity
10-32 x 0.625 inch M Phillips screws	4
12-24 x 0.5 inch M Phillips pan-head screws	4
GNLHW, FEET, POLY, BLK, adhesive	4
Cable management guide Fabricated plastic cable management guide	1
M4 x 20 mm Phillips pan-head screws	1
M4 x 6 mm Phillips flat-head screws	12
Rack mount brackets 19 inches Fabricated metal brackets at the front of the rack	2

Optional accessory kits

The optional accessory kit is not shipped with the switch. You must order it separately by using the chassis-specific part number.

Table 3. 23-inch rack mount kit
Switch model	Accessory kit part number
Cisco C9550 1RU Series Smart Switch	C9550-1U-ACKT-23I= Cisco C9550 1RU series 23-inch rack mount kit

This table lists the contents of the 1-RU 23-inch optional rack mount kit.

Table 4. C9550-1U-ACKT-23I= contents
Item	Quantity
Rack mount brackets 23 inches Fabricated metal brackets at the front of the rack	2
M4 x 6 mm Phillips flat-head screws	12
12-24 x 0.5 inch M Phillips pan-head screws	4
10-32 x 0.625 inch M Phillips screws	4

The 1U extension rails and brackets for 4P mount spare (C9550-2U-4PTH-KIT=) is not part of the standard accessory kit. You must order it separately by using the chassis-specific part number.

Table 5. 1U extension rails and brackets for 4P mount
Switch model	Accessory kit part number
Cisco C9550 1RU Series Smart Switch	C9550-1U-4PTH-KIT= Cisco C9550 1RU series extension rails and brackets for 4P mount kit

Table 6. C9550-1U-4PTH-KIT= contents
Item	Quantity
Rack mount bracket guide rails Extension rails	2
Rack mount brackets Fabricated metal brackets at the front of the rack	2
Rack mount brackets 19 inches Fabricated metal brackets at the front of the rack	2
M4 x 6 mm Phillips flat-head screws	24
12-24 x 0.5 inch M Phillips pan-head screws	8
10-32 x 0.625 inch M Phillips screws	8

2RU accessory kits

The standard accessory kit contains the switch you ordered and other components needed for installation. Based on the switch that you have ordered, you will receive the IRU or 2RU accessory kit.

Optional accessory kits must be ordered separately.

Standard accessory kit

Note

Verify that you have received these items. If any item is missing or damaged, contact your Cisco representative or reseller for instructions.

The Cisco C9550 2RU Series Smart Switches ship with a standard accessory kit.

Table 7. 19-inch standard accessory kit
Switch model	Accessory kit part number
Cisco C9550 2RU Series Smart Switch	C9550-2U-ACKT-19I= Cisco C9550 2RU series 19-inch rack mount kit

This table lists the contents of the 2RU standard accessory kit.

Table 8. C9550-2U-ACKT-19I= contents
Item	Quantity
10-32 x 0.625 inch M Phillips screws	12
12-24 x 0.5 inch M Phillips pan-head screws	8
GNLHW, FEET, POLY, BLK, adhesive	4
Cable management guide Fabricated plastic cable management guide	2
M4 x 20 mm Phillips pan-head screws	2
M4x6 mm Phillips flat-head screws	16
Rack-mount brackets 19 inches Fabricated metal brackets at the front of the rack	2

Optional accessory kits

The optional accessory kit is not shipped with the switch. You must order it separately by using the chassis-specific part number.

Table 9. 23-inch rack mount kit
Switch model	Accessory kit part number
Cisco C9550 2RU Series Smart Switch	C9550-2U-ACKT-23I= Cisco C9550 2RU series 23-inch rack mount kit

This table lists the contents of the 2RU 23-inch optional rack mount kit.

Table 10. C9550-2U-ACKT-23I= contents
Item	Quantity
Rack-mount brackets 23 inches Fabricated metal brackets at the front of the rack	2
M4 x 6 mm Phillips flat-head screws	16
12-24 x 0.5 inch M Phillips pan-head screws	8
10-32 x 0.625 inch M Phillips screws	8
M4 x 20 mm Phillips pan-head screws	2
M4x6 mm Phillips flat-head screws	16
Rack-mounting bracket-19 inches Fabricated metal bracket at the front of the rack	2

The 1U extension rails and brackets for 4P mount spare (C9550-2U-4PTH-KIT=) is not part of the standard accessory kit. You must order it separately by using the chassis-specific part number.

Table 11. 1U extension rails and brackets for 4P mount
Switch model	Accessory kit part number
Cisco C9550 2RU Series Smart Switch	C9550-2U-4PTH-KIT= Cisco C9550 2RU series extension rails and brackets for 4P mount kit

Table 12. C9550-2U-4PTH-KIT= contents
Item	Quantity
Rack mount bracket guide rails Extension rails	2
Rack mount brackets Fabricated metal brackets at the front of the rack	2
Rack mount brackets 19 inches Fabricated metal brackets at the front of the rack	2
M4 x 6 mm Phillips flat-head screws	24
12-24 x 0.5 inch M Phillips pan-head screws	12
10-32 x 0.625 inch M Phillips screws	12

NEBS kits

The 19-inch rack mount Network Equipment-Building System (NEBS) kit is not a standard accessory kit. You must order it separately by using the chassis-specific part number.


NEBS kit part number	Description
C9550-NEBS-KIT=	C9550 NEBS kit

The NEBS installation kit consists of the following items.

Table 13. Contents of the NEBS kit
Item	Quantity
Filter frame assembly A fabricated metal assembly to attach the filter cover.	1
Filter cover assembly A fabricated metal assembly to attach the air filter.	1
M3x8 mm Phillips pan-head screws	4

NEBS filter kit

The NEBS air filter is not a standard accessory kit. You must order it separately by using the chassis-specific part number.


NEBS filter part number	Description
C9550-NEBS-FL-PE=	Cisco C9550 NEBS filter (port-side exhaust airflow)

Table 14. Contents of the NEBS filter kit
Item	Quantity
Filter cover (reuse NEBS filter cover) A fabricated metal assembly to attach the air filter.	1
Air filter The air filter for filtering dust particles from entering the chassis.	1
M3x8 mm Phillips pan-head screws	4


1	C9550 Series Smart switch	3	Air filter
2	Filter cover	-

Figure 2. Switch with NEBS filter kit attached

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