The product is a 2-pack of compatible black toner cartridges for HP LaserJet Pro 400 printers, specifically models M425dn, M401n, M401dne, and M401a. The cartridges are designed for use with laser print technology and have a high page output of 6,900 pages at 5% coverage. They are compatible with HP 80X CF280X black toner cartridges and are suitable for various HP LaserJet Pro 400 printer models. The toner cartridges are of high quality and are an affordable option for printing large volumes of documents and images in black and white.
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