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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4TB PRO-G40 SSD - Up to 3000MB/s, Thunderbolt 3 (40Gbps), USB-C (10Gbps), IP68 dust/Water Resistance, External Solid State Drive - SDPS31H-004T-GBCND

Product ID: 533823399

Details

Brand
SanDisk
Color
Information
Compatible Devices
Mac PC
Connectivity Technology
Thunderbolt
Digital Storage Capacity
4000 GB
Hard Disk Description
Solid State

⚡3000MB/s blazing read speed

🔗Dual Thunderbolt 3 & USB-C compatibility

🛡️IP68 dust/water + 4000lb crush ruggedness

AR$3245183

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Rugged speed meets pro-grade power — never miss a beat!

BLAZING FAST TRANSFERS - Move 50GB in under 60 seconds with up to 3000MB/s read speeds.
ULTRA RUGGED DURABILITY - IP68-rated dust/water resistance plus 3m drop and 4000lb crush protection.
MAC READY OUT OF THE BOX - Formatted in APFS for instant plug-and-play with Apple devices.
COOL RELIABLE PERFORMANCE - Aluminum core dissipates heat to maintain peak speeds during heavy workflows.
UNIVERSAL THUNDERBOLT 3 USB C - Seamlessly connect to Mac and PC with dual-mode high-speed ports.

The SanDisk Professional 4TB PRO-G40 SSD delivers ultra-fast Thunderbolt 3 speeds up to 3000MB/s read and 2500MB/s write, with dual USB-C compatibility. Built for professionals on the move, it features an IP68 dust and water resistance rating, 3-meter drop protection, and can withstand up to 4000 pounds of crush force. Its aluminum core ensures sustained performance by efficiently dissipating heat, while being Mac-ready with APFS formatting. This external SSD is engineered for demanding workflows, combining speed, durability, and versatility in a sleek portable design.

Specifications

ASIN	B0BW6715SV
Additional Features	Dust Resistant, Portable, Water Resistant
Best Sellers Rank	#35 in External Solid State Drives
Brand	SanDisk Professional
Built-In Media	PRO-G40 SSD, Quick Start Guide, Thunderbolt 3 (40Gbps) Cable
Cache Memory Installed Size	4
Color	Information Not Available
Compatible Devices	Mac, PC
Connectivity Technology	Thunderbolt, USB
Customer Reviews	4.0 4.0 out of 5 stars (1,102)
Data Transfer Rate	3000 Megabytes Per Second
Digital Storage Capacity	4000 GB
Enclosure Material	Information Not Available
Form Factor	Portable
Global Trade Identification Number	00619659195991
Hard Disk Description	Solid State Drive
Hard Disk Form Factor	0.5 Inches
Hard Disk Interface	USB 3.0
Hard-Drive Size	4 TB
Hardware Connectivity	Thunderbolt
Hardware Platform	Mac, PC
Installation Type	External Hard Drive
Item Dimensions L x W x Thickness	4.36"L x 0.47"W x 2.28"Th
Item Weight	4.32 ounces
Manufacturer	Sandisk Technologies, Inc.
Media Speed	2500
Mfr Part Number	SDPS31H-004T-GBCND
Model Name	SanDisk Professional PRO-G40 SSD
Model Number	SDPS31H-004T-GBCND
Number of Items	1
Read Speed	3000 Megabytes Per Second
Specific Uses For Product	Business, Multimedia, Personal
UPC	619659195991
Unit Count	1.0 Count
Warranty Description	5-year limited manufacturer warranty

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