Your search for "hpe 40gb qsfp+ direct attach" revealed the following:

NEW Cisco WS-C3850-48XS-S 48x 10GB SFP+ 4x 40GB QSFP+ F-B Airflow Switch

SKU: NSN-3760
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper EX4300-48T-DC 48x 1GB RJ-45 4x 40GB QSFP+ F-B Airflow (DC) Switch

SKU: NSH-4915
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Juniper MPC5E-40G10G-IRB MX2000 Series 6x 40GB QSFP+ 24x 10GB SFP+ Line Card

SKU: NSH-8689
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Dell S4148FE-ON 48x 10GB SFP+ 2x 40GB QSFP+ 4x QSFP28 F-B No OS10 Switch

SKU: NSN-9966
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N9K-X9536PQ Nexus 9000 Series 36x 40GB QSFP+ Switch Line Card

SKU: NSN-8788
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell S4148U-ON-RA 48x (24x Unified) SFP+ 2x 40GB QSFP+ 4x QSFP28 B-F OS10 Switch

SKU: NSB-6545
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco N3K-C3164Q-40GE 64x 40GB QSFP+ Front-to-Back Airflow Switch

SKU: NSN-2514
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280QRA-C36S-R 24x 40GB QSFP+ 12x 100GB QSFP100 B-F Air Switch

SKU: NSN-2363
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco N2K-C2348UPQ 48x 10GB SFP+ 6x 40GB QSFP+ Back-to-Front Air Fabric Extender

SKU: NSH-6099
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Nvidia Mellanox MCP1600-C02AE26N 2.5m 100GB QSFP28 Direct Attach Cable

SKU: NSN-8965
Condition: New
Shipping: Overnight Options
Warranty: 365 days