Looks like pulls from HP machines. Seller has low # of feedback so proceed with appropriate caution. Also has other sizes.
800GB 2.5" SATA Intel SSD DC S3700 6Gb/s HP 0DT8XJ SSDSC2BA800G3P
800GB 2.5" SATA Intel SSD DC S3700 6Gb/s HP 0DT8XJ SSDSC2BA800G3P