Head to head

WD_BLACK SN770M 1TB vs WD_BLACK SN770M 2TB

Our pick

WD_BLACK SN770M 2TB

For a handheld or console with a short 2230 slot

Why this one

Choose the WD_BLACK SN770M 2TB for a supported M.2 2230 PCIe 4 slot when 1TB is too small. Check the device’s module clearance; the bare drive is 2.38mm high. Its limited warranty ends after five years or the 1,200TB write allowance, whichever comes first.¹²

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Product photographs. Not to scale.

What WD_BLACK SN770M 1TB offers

Its 1TB capacity and short M.2 2230 format give a device with a matching slot room for a larger local game library.³

What differs

Specification	WD_BLACK SN770M 1TB	WD_BLACK SN770M 2TB
Capacity	1,000 GB³	2,000 GB¹

More details

Specification	WD_BLACK SN770M 1TB	WD_BLACK SN770M 2TB
PCIe generation	PCIe® Gen 4.0³	PCI Express 4.0¹
Sequential read speed	Not published	Not published
Endurance	600 TB (Tested configuration: 1TB WDBDNH0010BBK-WRSN specification)³	1,200 TB¹
Sequential write speed	Not published	Not published
Flash cell type	Tlc³	Tlc¹
Warranty	5 years (Duration: 5 years or Max Endurance [TBW] limit, whichever occurs first; Environment: See support.wdc.com for region-specific warranty details)²	5 years (Duration: 5 years or Max Endurance [TBW] limit, whichever occurs first; Environment: See support.wdc.com for region-specific warranty details)²
M.2 form factor	M.2 2230³	M.2 2230¹

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Sources