Part Number: C13T05A40N (latest version).
Ink Type: DURABrite Pro pigment-based ink, which is smudge, water, and fade-resistant.
Page Yield: Approximately 20,000 pages (ISO/IEC 24711/24712 standard).
Ink Volume: Approximately 182.5 ml.
Color: Yellow.

Compatible Printer Models
According to Epson and various technical suppliers, this ink pack is compatible with the following A3 color multifunction printers:
WorkForce Pro WF-C878R Series: Including WF-C878RDWF, WF-C878RDTWF, and WF-C878RD3TWFC.
WorkForce Pro WF-C879R Series: Including WF-C879RDWF and WF-C879RDTWF.

Physical Specifications
Weight: Listed by TonerPrint as 0.38 kg (gross shipping weight).
Dimensions: Technical datasheets from Secomp and TonerPrint list the dimensions as approximately 14.3 cm x 27.7 cm x 4 cm.
Packaging: Sold as a single-unit Ink Supply Unit (ISU).

Performance Features
High Efficiency: Designed to deliver professional-quality text and bright colors while maintaining a low total cost of ownership in high-demand office environments.
Reliability: PrecisionCore Heat-Free technology ensures consistent output at high speeds (up to 24-25 ISO ppm for color