What is the significance of 40gbps if the drive can only transfer at 2700mb/s? isn't only around 7% of 40gbps?

Drive transfer is 2700 MB/s (mega bytes/s), since 1 byte=8 bits so 2700 x 8= 21600 mb/s, which is more than 50% of 40 Gb/s Thunderbolt

Will it work with the new iPhone 15 Pro Max for recording video direct?

Unclear. I’ve ordered an iPhone Pro Max but cannot even find information about whether or not it will work at speed with Thunderbolt 4 cable. Apple only says that it is “compatible” while it mentions specifically other devices like MacBooks that would benefit with top transfer speeds up to 40GBps.

imac 2017 model 10.13.6 - nearly to of memory - will this work on my older iMac? Connects ok to the ports (no idea what they're called)...thanks!

It’s my understanding that Apple’s Thunderbolt ports are backward compatible. So it should work. But you won’t get the full speed this drive is capable of delivering. This is a Thunderbolt 3 design.

Need to back up 500gb of 2012 MacBook Pro; would this be a good choice to do so? (No lightning/usbc port)

It wouldn’t, no. I had no luck using it with a USB-C to USB-A cable, not adapter. I tried several brands/kinds, but none worked. If I recall, TB 1 and 2 don’t offer power output, so you’re out of luck there as well. Though, if you want to spend an unreasonable amount of money on this, plugging the drive into a TB3 or 4 dock and connecting that dock to the laptop using a TB3 ->TB2 adapter may work.

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1TB SanDisk Professional PRO-G40™ SSD, External Solid State Drive, Thunderbolt 3™ (40Gbps), USB-C™ (10Gbps), 3000MB/s R, 2500MB/s W Ultra-Rugged IP68, 4000Lbs Crush Resistance, 5 Yr Warranty

Product ID: 561613362

Details

Brand
SanDisk
Colour
Black
Compatible Devices
Desktop Laptop
Connectivity Technology
Thunderbolt 3
Digital Storage Capacity
1000 GB
Hard Disk Description
Solid State

⚡3000MB/s read speed

💧IP68 dust & water resistance

🛡️4000lb crush & 3m drop proof

Description

⚡ Power Your Workflow Anywhere — Speed Meets Rugged Elegance

COOL UNDER PRESSURE - Aluminum core design dissipates heat to maintain peak performance during intense workflows.
MAC READY PRO GRADE - Pre-formatted for APFS and engineered for professional strength and reliability.
RUGGED ARMOR FOR ON THE GO - IP68-rated dust and water resistance plus 4000lb crush and 3m drop protection—built for any environment.
BLAZING THUNDERBOLT 3 SPEEDS - Move 50GB in under 60 seconds with up to 3000MB/s read and 2500MB/s write speeds.
DUAL MODE DEVICE COMPATIBILITY - Seamlessly connect via Thunderbolt 3 (40Gbps) or USB-C (10Gbps) for ultimate versatility.

The SanDisk Professional 4TB PRO-G40 SSD delivers ultra-fast Thunderbolt 3 speeds up to 3000MB/s, dual compatibility with USB-C, and military-grade durability featuring IP68 dust/water resistance and 4000lb crush protection. Designed for professionals demanding reliable, portable storage that keeps pace with their creative and business workflows.

Specifications

ASIN	B0BGYMJBQF
Best Sellers Rank	#36,963 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #66 in External Solid State Drives
Box Contents	G-DRIVE™ PRO SSD, Thunderbolt™ 3 Cable (40Gbps),Quick Start Guide
Brand Name	SanDisk Professional
Cache Memory Installed Size	1 TB
Color	Black
Compatible Devices	Desktop, Laptop
Compatible Video Game Console Models	Microsoft Xbox SERIES S, Sony PlayStation 5
Customer Package Type	Standard Packaging, Amazon Frustration Free
Customer Reviews	4.0 4.0 out of 5 stars (762)
Data Transfer Rate	2700 Megabytes Per Second
Digital Storage Capacity	1000 GB
Enclosure Material	Information Not Available
Form Factor	2.5-inch
Hard Disk Form Factor	2.5 Inches
Hard Disk Interface	USB 3.0
Hard Disk Type	Solid State Drive
Hard-Drive Size	1 TB
Hardware Connectivity	Thunderbolt
Hardware Platform	Mac, PC
Importer Contact Information	RASHI PERIPHERALS PVT LTD.,RASHI COMPLEX A BLDG, SURVEY 186, DONGARIPADA, POMAN, VASAI-E,THANE, MAHARASHTRA-401208
Installation Type	Freestanding
Item Type Name	External SSD
Item Weight	122 g
Manufacturer	NO. 20,SUZHOU CITY, JIANGSU PROVINCE, PRC JIANGSU,China-512, Western Digital Technologies, Inc.
Manufacturer Contact Information	NO. 20,SUZHOU CITY, JIANGSU PROVINCE, PRC JIANGSU,China-512
Manufacturer Part Number	SDPS31H-001T-GBCND
Media Speed	2500
Model Name	SanDisk Professional PRO-G40™ SSD
Model Number	SDPS31H-001T-GBCND
Network Connectivity Technology	Thunderbolt 3
Number of Items	1
Packer Contact Information	Western Digital UK Ltd
Product Features	Dust Resistant, Shock Resistant, Water Resistant
Read Speed	2700 Megabytes Per Second
Specific Uses For Product	Multimedia, Personal
UPC	619659195953
Warranty Description	5 Year Manufacturer

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