Kingston 16GB DDR5 4800 Registered RAM

Kingston 16GB DDR5 4800MT/s ECC Registered DIMM CL40 x80 1Rx8 1.1V 288-pin 16Gbit Hynix M KSM48R40BS8KMM-16HMR

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Memory Size: 16 GB
Memory Technology: DDR5 SDRAM
Memory Voltage: 1.10 V
Memory Speed: 4800 MHz
Memory Standard: DDR5-4800/PC5-38400

Kingston 16GB DDR5 4800 Registered image 1

Kingston 16GB DDR5 4800 Registered image 2

Kingston 16GB DDR5 4800 Registered image 3

Kingston 16GB DDR5 4800 Registered image 4

Kingston 16GB DDR5 4800 Registered image 5

Kingston 16GB DDR5 4800 Registered image 6

Specifications Overview

Model	KSM48R40BS8KMM-16HMR
Type	288-pin DDR5 RDIMM
Speed	DDR5-4800 MHz
Size	16GB (1 x 16GB)
CAS Latency	40
First Word Latency	16.67 ns
Voltage	1.1 V
Heat Spreader	No
ECC Support	Yes

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C

RAM First Word Latency Table (nanoseconds)

Latency is measured in nanoseconds, which is a combination of frequency and CAS. Both frequency increases and latency decreases result in better system performance (when latency is the same, always prefer higher frequency if possible).

Frequency (MT/s)

	4400	4800	5000	5200	5600	6000	6200	6400	6600	6800	7000	7200	7400	7600
36	16.36	15.00	14.40	13.85	12.86	12.00	11.61	11.25	10.91	10.59	10.29	10.00	9.73	9.47
37	16.82	15.42	14.80	14.23	13.21	12.33	11.94	11.56	11.21	10.88	10.57	10.28	10.00	9.74
38	17.27	15.83	15.20	14.62	13.57	12.67	12.26	11.88	11.52	11.18	10.86	10.56	10.27	10.00
39	17.73	16.25	15.60	15.00	13.93	13.00	12.58	12.19	11.82	11.47	11.14	10.83	10.54	10.26
40	18.18	16.67	16.00	15.38	14.29	13.33	12.90	12.50	12.12	11.76	11.43	11.11	10.81	10.53
41	18.64	17.08	16.40	15.77	14.64	13.67	13.23	12.81	12.42	12.06	11.71	11.39	11.08	10.79
42	19.09	17.50	16.80	16.15	15.00	14.00	13.55	13.13	12.73	12.35	12.00	11.67	11.35	11.05
43	19.55	17.92	17.20	16.54	15.36	14.33	13.87	13.44	13.03	12.65	12.29	11.94	11.62	11.32
44	20.00	18.33	17.60	16.92	15.71	14.67	14.19	13.75	13.33	12.94	12.57	12.22	11.89	11.58
45	20.45	18.75	18.00	17.31	16.07	15.00	14.52	14.06	13.64	13.24	12.86	12.50	12.16	11.84
46	20.91	19.17	18.40	17.69	16.43	15.33	14.84	14.38	13.94	13.53	13.14	12.78	12.43	12.11
47	21.36	19.58	18.80	18.08	16.79	15.67	15.16	14.69	14.24	13.82	13.43	13.06	12.70	12.37
48	21.82	20.00	19.20	18.46	17.14	16.00	15.48	15.00	14.55	14.12	13.71	13.33	12.97	12.63
49	22.27	20.42	19.60	18.85	17.50	16.33	15.81	15.31	14.85	14.41	14.00	13.61	13.24	12.89
50	22.73	20.83	20.00	19.23	17.86	16.67	16.13	15.63	15.15	14.71	14.29	13.89	13.51	13.16
51	23.18	21.25	20.40	19.62	18.21	17.00	16.45	15.94	15.45	15.00	14.57	14.17	13.78	13.42
52	23.64	21.67	20.80	20.00	18.57	17.33	16.77	16.25	15.76	15.29	14.86	14.44	14.05	13.68

CAS (clock cycles) Lower latency means faster memory.

Distribution of First Word Latencies for Similar RAM Modules

The histogram below shows the distribution of first word latencies (in nanoseconds) for all RAM modules of the same DDR type and frequency in our database. Each bar represents the number of modules that fall within a specific latency range. The highlighted bar indicates the latency of the currently selected RAM module.