My new card when tested is reporting a read speed of 90MB/s and 88 for write do i have a problem with this card??

That's not the correct speed for the 700s card That's the speed of the slower 300s or 500s cards

Does this work on the canon eos r6 or mirrorless cameras in general or just dslr cameras?

Hi John, I've been using this card with EOS R for about two years and I do believe that R6 uses same kind of cards. Not 100% sure but at least with R I can recommend. Although I would recommend to check out also other alternatives since this is few years old card. Maybe there's other more cabable cards available?

What can you use it in.

I brought it to use in in camera

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Transcend 8GB SDC300S SD UHS-I SDHC Memory Card, C10, 1080p Full HD

Product ID: 125951789

Details

Brand
Transcend
Compatible devices
Camera
Flash memory type
SDHC
Memory storage capacity
8 GB
Model name
SDC300S

⚡20 MB/s read speed

📸Class 10 for Full HD video

🛡️Shock & water resistant

₨915

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Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Store Fast, Shoot Fearlessly!

FULL HD READY - Class 10 speed rating ensures smooth 1080p video recording without a hitch.
RUGGED RELIABILITY - Engineered to resist drops, water, X-rays, and extreme temperatures from -25°C to 85°C for ultimate durability.
BLAZING FAST TRANSFERS - Up to 20 MB/s read and 10 MB/s write speeds keep your workflow seamless and efficient.
PEACE OF MIND WARRANTY - Backed by a 5-year limited warranty, your data is protected long-term.
UNIVERSAL COMPATIBILITY - Plug-and-play with DSLRs, camcorders, laptops, and tablets—no drivers needed.

The Transcend 8GB SDC300S SDHC Memory Card combines high-speed Class 10 performance with rugged durability, supporting up to 20 MB/s read speeds and built to withstand shocks, water, X-rays, and extreme temperatures. Compatible with a wide range of devices, it’s the reliable choice for professionals capturing Full HD video and managing data on the go.

Specifications

ASIN	B07JHGX99K
Best Sellers Rank	40,681 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 144 in SD Cards
Box Contents	flash memory card
Brand Name	Transcend
Colour	Black
Compatible Devices	Camera
Country of Origin	Taiwan
Customer Reviews	4.6 4.6 out of 5 stars (6,428)
EU Spare Part Availability Duration	1 Years
Flash Memory Type	SDHC
Global Trade Identification Number	00760557842774
Hardware Connectivity	SDHC
Item Dimensions D x W x H	10D x 48W x 50H centimetres
Item Dimensions L x W	32L x 24W millimetres
Item Highlight	Compatible with Legacy DSLRs, Trail Cameras, Digital Camcorders, Audio Recorders
Item Type Name	Transcend 8GB Premium 300S SDHC Memory Card Class 10
Item Weight	0.01 Kilograms
Manufacturer	Transcend
Manufacturer Part Number	TS8GSDC300S
Media Speed	10MB/s
Memory Storage Capacity	8 GB
Model Name	SDC300S
Model Number	TS8GSDC300S
Number of Items	1
Number of Packs	1
Product Features	Drop Proof, Static proof, Temperature resistant -25°C (-13°F) ~ 85°C (185°F), Water Proof, X Ray Proof
Product Warranty	Five-year Limited Warranty
Read Speed	20 Megabytes Per Second
Secure Digital Association Speed Class	Class 10
UPC	760557842774
Unit Count	1.0 count
Warranty Type	Five-year Limited Warranty

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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