Check the listing for details. Akai S1100 Sampler OS 4.3 System Boot Disk. Condition: New. Listed at 14.72 USD. Akai S1100 Sampler OS v4.3 System Boot Disk Hello everyone thanks for stopping by. Up for sale is the following: 1x Brand New 3.5” High Density Floppy Disk with the Operating System 4.4 installed to it. OS v4.3 is the latest and final operating system issued by Akai. The system boot disk in this eBay listing is only compatible with the S1100, not the S1100EX. I send all international packages via airmail parcel in order to ensure that your upgrades arrive safely and in a reasonable time frame. If you want your upgrades to be sent via international letter mail and have it arrive over a month later, then please check somewhere else then, thanks. Purchase with confidence! Check out my other auctions, I have spare parts for other samplers and synthesizers too! Any questions? Drop me a line, thanks.