Western Digital

Western Digital Purple 128 GB microSDXC

Name: Western Digital Purple 128 GB microSDXC
Brand: Western Digital
SKU: B088CD4Z1Z

Bottom line: The Western Digital Purple 128 GB microSDXC: 96-layer 3D NAND rated for 24/7 surveillance write cycles; main trade-off: endurance focus means it costs more than consumer microSD cards.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-20

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ 96-layer 3D NAND rated for 24/7 surveillance write cycles
✓ Card health monitor lets NVRs flag wear before failure
✓ ~60 MB/s write speed handles full HD and 4K capture
✓ Part of a WD Purple range that scales up to 1TB

Cons

✗ Endurance focus means it costs more than consumer microSD cards
✗ Health monitoring only works on cameras that support the feature
✗ ~60 MB/s write is modest next to V90 video cards
✗ Overkill for casual phone or tablet photo storage

Manufacturer description

Data That Never Leaves Your SightWestern Digital's WD Purple SC QD101 microSD card is designed specifically for the mainstream security camera market. Using advanced 96-layer 3D NAND technology, the card delivers a cost-effective combination of ultra endurance, high performance, and wide capacity range up to 1TB1, and its support for card health monitor functionality allows for pre-emptive storage management. With the fast-growing market of security cameras, and growing adoption of 4K video, this card offers the right combination of longevity and capacity to handle the 24/7 continuous…

SpecPicks Verdict

SpecPicks scored Western Digital Purple 128 GB microSDXC using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. Western Digital's PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is the WD Purple microSD card good for security cameras?

That is exactly what it is built for. Western Digital designed the Purple SC QD101 for the security camera market, using 96-layer 3D NAND to survive 24/7 continuous recording rather than occasional consumer writes.

How fast is the WD Purple 128 GB microSDXC card?

Write speed is around 60 MB/s, which Western Digital says is sufficient for recording high-definition video from cameras, phones, tablets, and other smart devices.

How long will 128 GB record before it overwrites?

It depends on your camera's resolution, bitrate, and whether it records continuously or on motion. Check your camera or NVR's storage calculator for a retention estimate at your settings.

What is the card health monitor feature?

WD Purple cards report their remaining endurance to compatible recorders, so you get pre-emptive storage management and can swap the card before it wears out instead of after footage is lost.

Can I use this card in a phone or tablet instead?

Yes. Western Digital notes it records full HD video and holds apps and photos on mobile devices, though the endurance engineering is aimed at continuous camera recording.

Key Features

The microSDXC memory card features write speed of around 60 MB/s that is sufficient for recording high-definition videos to your mobile phone, tablet, or other smart devices
With the 128 GB memory card, you'll be able to record full HD videos seamlessly and find the foremost out of your mobile apps, photos and a lot more

Full Specifications

Brand	Western Digital
Color	Purple
Model Name	Purple QD101
Read Speed	24 megabytes_per_second
Unit Count	1 Count
Media Speed	24 MB/s
Model Number	WDD128G1P0C
Warranty Type	Manufacturer
Item Type Name	microSDXC
Mfr Part Number	WDD128G1P0C
Number of Items	1
Number of Packs	1
Flash Memory Type	Micro SDXC
Compatible Devices	Camera
Additional Features	Micro-SDXC
Warranty Description	3 year Manufacturer
Hardware Connectivity	microSDXC
Item Dimensions L x W	5"L x 3"W
Memory Storage Capacity	128 GB
Item Dimensions D x W x H	0.59"D x 0.43"W x 0.04"H

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