Your search for "hpe 40gb qsfp+ direct attach" revealed the following:
Mellanox MCP1600-C003E26N 3m 100GB QSFP28 Direct Attach Copper Cable
SKU: NSB-2910
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Extreme EC8404005-E6 VSP 8418XSQ 16x 10GB SFP+ 2x 40GB QSFP+ Switch Module
SKU: NSN-4997
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7050SX2-72Q-R 48x 10GB SFP+ 6x 40GB QSFP+ B-F Airflow Switch
SKU: NSN-2394
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N5K-C5648Q 24x 40GB QSFP+ 2x GEM Slot Front-to-Back Air Switch Chassis
SKU: NSH-7707
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Fortinet FS-1048E 48x SFP+ 6x QSFP+ F-B Air Registrable / Unclaimed Switch
SKU: NSN-1235
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Nvidia Mellanox MCP1600-C003E30L 3m 100GB QSFP28 Direct Attach Copper Cable
SKU: NSB-0919
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N5K-C5624Q 12x 40GB QSFP+ 1x GEM Slot Front-to-Back Air Switch Chassis
SKU: NSN-0327
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper MPC5E-40G10G 24x 10GB SFP+ 6x 40GB QSFP+ Router Line Card
SKU: NSN-2376
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Extreme EC8200A01-E6 VSP 8200 80x 10GB SFP+ 4x 40GB QSFP+ Switch
SKU: NSH-8660
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N9K-C9372TX 48x 10GB Copper 6x 40GB QSFP+ Back-to-Front Airflow Switch
SKU: NSN-1493
Condition: New
Shipping: Overnight Options
Warranty: 365 days