Your search for "100g-qsfp28-sr4" revealed the following:
Arista AOC-Q-Q-100G-1M 1m 100GB QSFP28 Active Optical Cable
SKU: NSB-5262
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Arista AOC-Q-Q-100G-5M 5m 100GB QSFP28 Active Optical Cable
SKU: NSB-5265
Condition: Seller refurbished
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
NEW Arista AOC-Q-Q-100G-15M 15m 100GB QSFP28 Active Optical Cable
SKU: NSN-5324
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
NEW Arista AOC-Q-Q-100G-1M 1m 100GB QSFP28 Active Optical Cable
SKU: NSN-6738
Condition: New
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
NEW Arista AOC-Q-Q-100G-3M 3m 100 Gigabit QSFP to QSFP Active Optical Cable
SKU: NSN-5724
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper PTX10K-LC1101 PTX 10000 Series 30x 100G QSFP28 Router Line Card
SKU: NSH-9738
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco Meraki MS450-12-HW 12x 40GB QSFP+ 2x 100GB QSFP28 Unclaimed Switch
SKU: NSN-3730
Condition: New
Shipping: Overnight Options
Warranty: 365 days