Upgrading my MacBook Pro (Retina, 13-inch, Early 2015) with 500GB flash storage.
![MacBook Pro Retina 13-inch Early 2015](https://www.sgwoot.com/wp-content/uploads/2019/12/Screenshot-2019-12-29-at-1.54.47-PM-1024x617.png)
Decided to use the Adata XPG SX8200 Pro 2TB 3D NAND NVMe Gen3x4 PCIe M.2 2280 for my SSD upgrade. Purchased from Fuwell @ SGD359 on 28 December 2019.
![Adata XPG SX8200 Pro 2TB](https://www.sgwoot.com/wp-content/uploads/2019/12/DSC_0083.jpg)
Sequential read/write speed up to 3500/3000 MB/s
NAND Flash: 3D TLC
Interface: PCIe Gen3x4
Form Factor: M.2 2280
MTBF: 2,000,000 hours
TBW: 1280TB
![](https://www.sgwoot.com/wp-content/uploads/2019/12/DSC_0085.jpg)
![](https://www.sgwoot.com/wp-content/uploads/2019/12/DSC_0087-1.jpg)
![](https://www.sgwoot.com/wp-content/uploads/2019/12/DSC_0088.jpg)
![](https://www.sgwoot.com/wp-content/uploads/2019/12/IMG_1425.jpg)
The Adata SX8200 Pro 2TB connected to the NVMe convert adapter is detected by the system.
![](https://www.sgwoot.com/wp-content/uploads/2019/12/IMG_1426.jpg)
![](https://www.sgwoot.com/wp-content/uploads/2019/12/Screenshot-2019-12-28-at-10.58.22-PM-1024x327.png)
Due to the PCIe 2.0 x4 interface limitation (Retina MacBook Pro 13-inch, Early 2015), we will not be able to achieve the XPG SX8200 Pro advertised sequential read/write speed of 3500/3000 MB/s.
Did you install something else?? Or only update Catalina? My makbook is a MacBook air 13” early 2015