curl-w32/docs/cmdline-opts/tftp-blksize.md

c	SPDX-License-Identifier	Long	Arg	Help	Protocols	Added	Category	Multi	See-also	Example
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.	curl	tftp-blksize	<value>	Set TFTP BLKSIZE option	TFTP	7.20.0	tftp	single	tftp-no-options	--tftp-blksize 1024 tftp://example.com/file

--tftp-blksize

Set the TFTP BLKSIZE option (must be >512). This is the block size that curl tries to use when transferring data to or from a TFTP server. By default 512 bytes are used.