Manufacturer: HYNIX - IMSOURCING. Manufacturer Part Number: HMT451U6BFR8A-PB. Brand Name: HYNIX - IMSOURCING. Product Series: SK. Product Name: SK 4GB DDR3 SDRAM Memory Module. Product Type: RAM Module. [Technical Information] Memory Size: 4 GB. Memory Technology: DDR3 SDRAM. Memory Voltage: 1.35 V. Memory Speed: 1600 MHz. Memory Standard: DDR3-1600/PC3L-12800. Error Checking: Non-ECC. Signal Processing: Unbuffered. CAS Latency: CL11. Device Supported: Desktop PC. Workstation. [Physical Characteristics] Number of Pins: 240-pin. Form Factor: DIMM. Thickness: 98.8 mil. Width: 1.2". Length: 5.3". [Miscellaneous] Environmentally Friendly: Yes. Environmental Certification: RoHS.