Your search for "HPE CX4" revealed the following:
HPE DL360 Gen9 ProLiant 755258-B21 96GB RDIMM x2 E5-2630 v3 8x HD Bays Server
SKU: NSH-6495
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Aruba R0X38B CX 6400 Series 48x 1GB PoE RJ45 Switch Line Card
SKU: NSN-9131
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE JL289A 20m 40GB QSFP+ Active Optical Cable
SKU: NSN-5442
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE J9264A 6600-24G-4XG 20x 1GB RJ45 4x 1GB Combo 4x 10GB SFP+ Switch
SKU: NSN-7617
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE 835955-B21 DDR4 SmartMemory 16GB Dual Rank 8x DDR4-2666 Memory
SKU: NSN-6798
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE 805351-B21 HPE DDR4 SmartMemory 32GB Dual Rank 4x DDR4-2400 Memory
SKU: NSN-7616
Condition: New
Shipping: Overnight Options
Warranty: 365 days
HPE J8699A 5400zl Series 48x 1GB PoE RJ45 4x Open Module Slot Switch Chassis
SKU: NSH-4771
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Aruba JL714A CX 8360 Series Front-to-Back Airflow Switch Fan Module
SKU: NSN-4812
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Q2F21A SN2700M M-Series 32x 100GB QSFP28 Switch
SKU: NSN-2408
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW HPE Aruba JL678A CX 6100 Series 24x 1GB RJ45 4x 10GB SFP+ Switch
SKU: NSN-9687
Condition: New
Shipping: Overnight Options
Warranty: 365 days