Silicon Power US75 4TB vs SANDISK Optimus GX PRO 8100 1TB SSD Comparison

Silicon Power US75 4TB and SANDISK Optimus GX PRO 8100 1TB are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity and Interface.

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Silicon Power US75 4TB

SANDISK Optimus GX PRO 8100 1TB

Prices
(Change region)

In Stock

$485.97

Last updated 22 minutes ago.

Prices
(Change region)

In Stock

$349.99

In Stock

Free shipping

$349.99

In Stock

$349.99

Last updated 22 minutes ago.

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Brand

Silicon Power

Brand

SanDisk

Model

SP04KGBP44US7505
SU04KGBP44US7505SN
SP04KGBP44US7505AY

Model

SDSP82100TAN-000E0
SDSP82100TAN

Release Date

📅 February 2026

* First availability for purchase, it may not correspond to the actual market launch date.

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Price/GB

$0.11

Price/GB

$0.35

GB/$1

8.7

GB/$1

2.86

Capacity

4000 GB

Capacity

1000 GB

Interface

PCIe Gen4 x4

Interface

PCIe Gen5 x4

NVME

Yes

NVME

Yes

Form Factor

M.2-2280

Form Factor

M.2-2280

Options (2)

	1TB Gen 4 $174.79
	2TB Gen 4 $295.79

Options (7)

	4tb GX PRO 8100 $1,399.99
	8tb GX PRO 8100 w/ Heatsink $2,849.99
	4tb GX PRO 8100 w/ Heatsink $1,449.99
	8tb GX PRO 8100 $2,799.99
	1tb GX PRO 8100 w/ Heatsink $369.99
	2tb GX PRO 8100 w/ Heatsink $729.99
	2tb GX PRO 8100 $689.54