Your search for "qsfp-40g-srbd" revealed the following:
Arista QSFP-40G-XSR4 40GB BASE-XSR4 850nm Short Reach MMF QSFP+ Transceiver
SKU: NSB-5333
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 23.99
• 6 in stock
Call if you need more
NEW Arista QSFP-40G-XSR4 40GB BASE-XSR4 850nm Short Reach MMF QSFP+ Transceiver
SKU: NSN-3845
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 76.99
• Only 2 remaining
Call if you need more
NEW Arista QSFP-40G-SRBD 40GB BASE-BIDI 850nm BiDI MMF QSFP+ Transceiver
SKU: NSN-5550
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista QSFP-40G-UNIV 40 Gigabit Universal MMF QSFP+ Optical Transceiver
SKU: NSN-7115
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista QSFP-40G-LR4 BASE-LR4 40GB 1310nm Long Reach SMF LC QSFP+ Transceiver
SKU: NSN-8262
Condition: New
Shipping: Overnight Options
Warranty: 365 days