Your search for "hpe 40gb qsfp+ direct attach" revealed the following:
Arista QSFP-100G-ERL4 100GBASE-ERL4 30-40km SMF Transceiver QSFP28
SKU: NSH-9088
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Arista AOC-Q-Q-100G-15M 15m 100 Gigabit QSFP28 Active Optical Cable
SKU: NSB-5268
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Nvidia Mellanox MSX6036T-1SFS 36x 40GB QSFP+ (FDR10) B-F Air (P2C) Switch
SKU: NSN-5961
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Arista AOC-Q-Q-100G-20M 20m 100GB QSFP28 Active Optical Cable
SKU: NSB-5270
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Nvidia Mellanox MSX6018T-1BRS SX6018 18x 40GB QSFP F-B Air (C2P) FDR10 Switch
SKU: NSB-6830
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Arista AOC-Q-Q-100G-1M 1m 100GB QSFP28 Active Optical Cable
SKU: NSB-5262
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista AOC-Q-Q-100G-1M 1m 100GB QSFP28 Active Optical Cable
SKU: NSN-6738
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Fortinet FS-524D-FPOE 24x PoE+ RJ45 4x SFP+ 2x QSFP+ Local Management Switch
SKU: NSN-8453
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Fortinet FS-548D 500 Campus 48x1GB RJ45 Registrable / Unclaimed Switch
SKU: NSN-1949
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista AOC-Q-Q-100G-5M 5m 100 Gigabit QSFP28 Active Optical Cable
SKU: NSN-5666
Condition: New
Shipping: Overnight Options
Warranty: 365 days