Does my laptop support NVME? Acer Aspire E15 E5-575G-511A

The drives fitted to your Aspire E15 E5-575G-511A are SATA 6.0 Gbps B+M M.2 SSD drives and 2.5" mechanical drives which you can replace with 2.5" SATA 6.0 Gbps SSD 560MBs read and 530MB/s write type drives. The B+M end key M.2 SSD drive that Acer uses is the type SATA 6.0 Gbps from either Samsung, Lite-On or Toshiba. The NVMe M.2 SSD are of PCIe 3 x2 or x4 type and can be fitted but your laptop doesn't have the ability to utilize their speeds and it would be a waste of your money as your laptop would only utilize these drives 50% speeds as they will be

These are the OEM M.2 drives that Acer fits to your laptop which the biggest capacity is 256GB that you can increase their capacities if you can get an M.2 SATA 512GB or larger? Acer used these end key B+M M.2 drives like the Samsung MZNLN256HCHP or Liteon CV1-8B256 or Toshiba THNSNJ256G8NY. These drives are: e-NAND system specification, compliant with V5.0 and are Dual data rate: up to 400Mbyte/s @ 200MHz

Note: An M.2 SSD is "keyed" to prevent insertion of a card connector (male) to an incompatible socket (female) on the host. The M.2 specification identifies 12 key IDs on the module card and socket interface but M.2 SSDs typically use three common keys: B, M, and B+M. You will find the key type labeled on or near the edge connector (or gold fingers) of the SSD. Before deploying M.2 SSDs, determine the type of socket on the host and check the module connector keying, as each connector should be inserted only in the appropriate socket.

ATP M.2 SATA SSDs are B+M-keyed (can fit in sockets for B-keyed and M-keyed modules), while M.2 NVMe SSDs for PCIe 3.0 x4 lane are M-keyed.

This model does support nvme, see: https://www.userbenchmark.com/UserRun/27278334