Your search for "mtef" revealed the following:

Nvidia Mellanox MTEF-PSR-AC-C 1100W AC F-B PSU QM8700 SN3700 SN4600C TQ8100

SKU: NSB-6790
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Nvidia Mellanox MTEF-PSF-AC-A 460W AC B-F PSU SN2700 SN2410 SB7800 SX1710

SKU: NSB-6783
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Nvidia Mellanox MTEF-FANF-A B-F Airflow (P2C) Switch Fan Module

SKU: NSB-6785
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW nVidia Mellanox MTEF-KIT-J Fixed Mounting Kit for 19 Inch Rack

SKU: NSN-4353
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Nvidia Mellanox MTEF-FANF-C B-F (P2C) Fan for QM8700, SN3700, SN3700C, SN3420

SKU: NSB-6715
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Dell QSFP-40G-ESR4 40GB BASE-ESR4 Extended Short Reach MMF QSFP+ Transceiver

SKU: NSB-5938
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW HPE JH233A BASE-SR4 40 Gigabit 850nm MMF Transceiver QSFP+

SKU: NSN-9550
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Dell AFBR-79EBMZ-FT1 40GB BASE-SR MMF XW7J0 QSFP-40G-BIDI QSFP+ Transceiver

SKU: NSB-5947
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW HPE JH231A 40GB BASE-SR4 850nm MPO MMF QSFP+ Transceiver

SKU: NSN-5535
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Mellanox MMA1B00-E100 100GB BASE-SR4 850nm MMF MPO QSFP28 Transceiver

SKU: NSN-8606
Condition: New
Shipping: Overnight Options
Warranty: 365 days