Question: What is the read/write speed for this 1TB.

It's should be good. Mine works very well.

Is there 2 or more terabyte? I only see 1tb and 500gb for sale:(

Western Digital only makes a 512 gig or a 1 terabyte expansion drive. Seagate makes a 2 terabyte one.

Does this sync with your consoles internal hard drive and essentially just add more space without adding an external hard drive?

You plug it into the back of your XBOX, and then you can move all your games that are installed on internal drive to it to free up space. You can also tell your XBOX to install any new games or updates to it to keep internal drive free.

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Description

🎮 Level up your Xbox storage game—never pause your play!

PLUG PLAY POWER - Officially licensed and instantly compatible with Xbox Series X|S—no console hacking required.
QUICK RESUME READY - Switch between games seamlessly without losing progress—jump back in like you never left.
COMPACT LIGHTWEIGHT - Sleek 25g design fits perfectly inside your console without bulk or fuss.
GAME LIBRARY UNLEASHED - 1TB storage means more AAA titles ready to play without constant uninstalling.
VELOCITY ARCHITECTURE BOOST - Experience internal SSD-level load times for ultra-smooth gameplay.

The WD_BLACK C50 Expansion Card is a 1TB PCIe Gen4 x4 SSD designed exclusively for Xbox Series X|S. It delivers internal SSD-level performance using Xbox Velocity Architecture, enabling faster load times and seamless gameplay. This officially licensed, plug-and-play expansion card supports Quick Resume, allowing gamers to switch between titles effortlessly while keeping a large library of games instantly accessible.

Specifications

Brand	WD_BLACK
Manufacturer	Western Digital Technologies Inc., Western Digital UK Ltd, Plot 301A Persiaran Cassia Selatan 1 Taman Perindustrian Batu Kawan, MK13 Batu Kawan Seberang Perai Selatan 14100 Penang Malaysia
Series	C50 Expansion Card
Colour	Black
Item Height	7.7 Millimeters
Item Width	5.6 Centimeters
Product Dimensions	3.16 x 5.56 x 0.77 cm; 25 g
Item model number	WDBMPH0010BNC-WCSN
Hard Drive Size	1 TB
Hard Disk Description	Solid State Drive
Hard Drive Interface	PCIE x 4
Operating System	xbox
Are Batteries Included	No
Lithium Battery Weight	0.5 Grams
Included Components	Protective Cover, Quick Start Guide, WD_BLACK™ C50 Expansion Card for Xbox™
Manufacturer	Western Digital Technologies Inc.
Country of Origin	Malaysia
Item Weight	25 g

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